. It then can check for any 3rd, 5th. Depending on the phase relationship between the IM products of the DUT and spectrum analyzer, the overall IM distortion can be higher (in-phase IM. 00 #,##0 #,##0. Here is how the syntax looks: =GROWTH (known_y’s, [known_x’s], [new_x’s], [const]) To interpolate data in Excel by using the GROWTH function, you may follow these steps: Insert the GROWTH function in any cell where you want the interpolated value for Y. 10 B € 1 Èÿ Arial1 h ÿ Arial1 ð ÿ Arial1 È ÿ ArialV General 0 0. Calculate intermodulation products from 2 and 3 frequencies. This is identified by the black-circle in the figure. ; Traficom database exclusion / inclusion tool: Tool to convert Traficom (viestintävirasto) wireless frequency finders results into inclusion / exclusion file, which. This can be calculated with calculators (excel), but it is often done by the manufacturer by means of preset frequencies. Third-Order Intermodulation Theory Intermodulation is a source of interference that arises from the combination of two or more signals at different frequencies in some kind of non-linear system. 4. 10intermodulation noise calculator excel interference analysis bill evans distortion third order intermodulation amplitude modulation signals containing more different frequencies system with nonlinearities between examine products consider some orders define understanding measurements most interesting analyzer abbreviated important metric. SIFM is the Sennheiser Software for rapid calculation of intermodulation-free radio frequencies for wireless microphone systems. A power series describes all of the possible combinations of generated frequencies. 14/26 – p. e. For example, you could hear strong interference at 14. The handling of trafic through a base station is in general handled by. Click on the image to see what we did in detail. Introduces a method to calculate interpolation step value in Excel. Here's how: Type the equal symbol (=) in a cell. Search. Download the latest version from Software Informer. Uploaded by Fritz Dellsperger. mega active link scanner. With Wavetool you can quickly find microphones with problems, low battery or no signal. These radio frequency calculators help with unit conversion, attenuator design, antenna design, radars, and various other basic calculators. Written in python3 and goF-Intermod 5. 00\ ;\($#,##0. Intermodulation Distortion is an amplifier or pre-amplifier specification that quantifies the non-harmonic frequencies added to an input signal. . In a gem of a paper, Hemmi explored the intermodulation product calculation problem ori-ented around the classic non-linear amplifier studies of Ha [5], but only considered the effects of a third order system [1]. This option is installed on other servers which you want to manage using the CASO server. To copy columns of data from an Excel spread sheet, highlight the column of frequencies to be copied in Excel and select copy. PV, one of the financial functions, calculates the present value of a loan or an investment, based on a constant interest rate. Broadband systems may be affected by. Unlike many of our other mortgage and loan calculators, our Simple Loan Calculator uses just the basic built-in financial formulas to. Select Column, Select All and Delete. Take an example of LNA with two interferers, where ‘ Aout, int (w1,w2) ’ is the output from LNA and Aout(IM3) is the intermodulation component. R3. is unlikely because it would be attenuated by the low pass filter in either the 155. Modulele cookie Educalingo sunt folosite pentru personalizarea reclamelor și obținerea de statistici de trafic. 44 dB (13. But as interest rates surge along with historic levels of credit card debt. Since headend levels can be carefully optimized and premium amplifiers used, intermodulation distortion within the headend is minimized, and most distortion occurs in the supertrunk, coaxial distribution, and set-top terminal. Microstrip Calculator. Intermod calculator. g. It does this by testing for odd and/or even order products caused by the mixing of multiple transmitters at a given site in a non-linear device. The meaning of INTERMODULATION is the production in an electrical device of currents having frequencies equal to the sums and differences of frequencies supplied. See derivation below the. However, it is determined by specific system characteristics. Before we delve into creating the calculator button and assign various codes to it, we must first create the outline of the calculator beforehand. The second set of values is (8,4). Calculating these will provide us the measure of non-linearity in a system. Net Time Server & Client. . How to Create a Rental Property Analysis Spreadsheet. Large selection of online interactive calculators for RF design, including attenuators, capacitance, resonance, RF traps, and microstrip impedance. Calculating percent difference between 2 columns. Knowing. Type =(2500-2342)/2342, and then press RETURN . This is especially true at the lower- (450 MHz to 1GHz) and mid. Cascading IP3 Values in a Chain of Components. . exe). exe). Input Frequency lower value, MHz (input1) : Input Frequency higher value, MHz (input2) : Lower Sideband, High value (Output2) : Upper Sideband, High value (Output4) : EXAMPLE: INPUTS: input frequency range = 800 (low) to 850 MHz (high), Local Oscillator Frequency=700 MHz. Select Contour Type: F (50,50) Service Contour -- FM and NTSC (analog) TV F (50,10) Interfering Contour F (50,90) Digital TV Service Contour. 0 and 100. stable diffusion infinity colab. Fifth Order. This is the calculated monthly payment for a 30-year mortgage with an interest rate of. Up to 1000 transmit and 1000 receive frequencies can be. Up to 1000 transmit and 1000 receive frequencies can be entered with a frequency range from 0 Hz to. If the intermodulation products are negligible at the receiver, then these areas can be considered as different "zones" for purposes of frequency coordination. WinRFCalc download page. Version: 1. We provide access to RF education. 2. Then your percent change formula takes this form: = (C2-B2)/B2. Serving Denver's small businesses. This software tool specifically designed for the wireless, professional audio and video industries. Data Types: logicalUsing an intermodulation calculator is relatively straightforward. 4. =SUM (D1:D7,F1:F7)Welcome to the ninth installment of All About Wireless. SPURIOUS FREE DYNAMIC RANGE. Any nonlinear device, when presented with two or more input frequencies, will output not only the input frequencies but harmonics and intermodulation products of the input frequencies as well. A. Share. LionScripts Wi-Fi Hotspot Creator. The table starts with an initial principal of P 0 =4000. NET Framework 4. The IP3 calculator does IM3 power levels to IP3 (i. Latest updates on everything Intermodulation Software related. In column C, enter = (B1/A1). This is generated due to passive components such as power splitters, cables etc. The well known equation found behind all mixer-spurious analysis programs is given by (after the paper by Bert Henderson) in which n and m are (positive and negative) integers. Select Column, Select All and Delete. . Ideal Case. Use Excel as your calculator. Making calculations in Excel is easy. represent the frequencies of the original signals. One has to follow a very precise frequency scheme to fore-come this. Passive Inter-modulation (PIM) is the generation of interfering signals caused by non-linearities that occur in passive components such as antennas, cables, connectors, or duplexers with two or more high-power input signals. The expression normally used for the mixing products is: FIF = M * FRF + N * FLO (1) Where M and N are equal to 0, ±1, ±2, etc. waveguide dimensions table - describes WR sizes,frequency,dimensions (broad,narrow) in inch and mm. A. The free space path loss formula. Interference due to intermodulation generally occurs when at least two transmitters close to the receiving antenna produce. This component also allows for editing of devices of the document (adding, deleting). You can calculate the weighted average price per product by using the SUMPRODUCT function. Even though this equation is quite simple, its ramifications in RF design are significant. To add the second column of numbers, hold Ctrl and scroll down from the first to the last number in the column. It will estimate the future value of your savings account with optional periodic deposits. d) that the intermodulation interference calculation procedure will offer a useful means of promoting efficient spectrum utilization by the land-mobile service, recommends 1 that the receiver intermodulation model presented in Annex 1 should be used for intermodulation interference calculations in the land-mobile service; F-Intermod. Intermodulation. Passive Intermodulation Calculator for RF antennas. bmp, . Understanding the dynamic performance of the receiver requires knowledge of intermodulation products (IPs) and how they affect receiver operation. 2. Two of the more popular programs are IAS (Intermodulation Analysis Software) made by Professional Wireless Systems and WWB (Wireless Workbench) created by Shure. Automatic Except for Data Tables: also tells Excel to recalculate any formulas if the data in the formula's cells changes. RF Calculators Spreadsheet. N E = (B + SINAD dB - 1. The definition of the third-order intermodulation given in equation 9 is the same as for tones used to describe intermodulation distortion in narrowband analysis. When two or more. everything RF has created a series of RF calculators to help engineers and students with common calculations that they need to conduct frequently. R = Distance to the center of the antenna (i. The standard format for indicating decibel values is to use upper case letters; i. LO. 5 - VSWR Calculator. meas. Identify Your Wireless System Parameters: Begin by gathering the necessary information about your wireless system. Examples include connection between connector and cable, junction between two different types of cable made of. But there's more. To copy columns of data from an Excel spread sheet, highlight the column of frequencies to be copied in Excel and select copy. e. References 1. Third order distortions are the result of third order non-linearity and are formed by two mixing operations such as (A)+ (A)+ (A) or 3A, (A)+ (A)+ (B), 2A+B, A+B+C. Midian's INTERMOD CALCULATOR predicts the possible occurrence of intermodulation products that may cause receiver interference at the radio repeater site. Thus, the higher the radio frequency, the shorter the wavelength, and the lower the frequency, the longer theDemonstration of 3rd order intermodulation. Intermodulation calculation User Guide Régis Banville November 2022 . Interpolating Between Two Values by Applying Mathematical Formula. Optional extra payments. Intermodulation product generation in a power amplifier. The OIP3 calculator does OIP3 to IM3 power levels conversion using OIP3 formula. m, n are positive integers including 1, m+n is the order of intermodulation. Click the “Generate Report” button to generate a report that shows theIn addition to my favorite wireless tools, Here are of my favorite and most helpful wireless/RF resources I mentioned recently in the Live Sound Summit Webinar hosted by Nathan Lively of Sound Design Live. CTB Intermodulation Interference Signals CTB intermodulation products are spurious signals due to the cube of the input signal multiplied by the a3 coefficient of the Taylor series expansion. Our Savings Calculator is a free spreadsheet that is simple to use and much more powerful than most online calculators that you'll find. Pasternack's RF Free Space Path Loss (FSPL) Calculators is the ideal measurement tool that allows loss or attenuation of signal strength calculations between two antennas. Select the first entry in your Payment (Number) column. - Enter the amount you expect to withdraw in today's dollars. ). LO 1 x Input -2 : -53 dBc. LO 0 x Input 3 : -85 dBc. Wireless Converters and Calculators. 1-866-PASTERNACK (1-866-727-8376) US and Canada only • +1-949-261-1920 International • Email [email protected]. 1446. Highlighting of ranges added Slider to step RF frequency addded. Markers have been added, and the output-referred third-order intercept point has been calculated based on simple geometry and the assumption that the intermodulation products will rise three times as fast as the desired IF tones, for each dBTo apply the custom time format, click Ctrl + 1 to open the Format Cells dialog, select Custom from the Category list and type the time codes in the Type box. Moreover, this view allows you to edit the frequency by moving them with the mouse. Mixer Spur Calculator Download Excel File Calculator>> Acknowledgment. The image from the spectrum analyser below shows signals on channels 2 and 3, 863. To calculate the percent difference between two numbers correctly, carry out these steps. The a1Ain,int is the input amplitude of our blocker interferer, and as it is in the output, it is multiplied by gain a 1. The program is written in Microsoft Excel 97. Of course staying close here and subscribing to my YouTube channel is a good start…. The good news is that these CSV reports can be imported to be used in Microsoft Excel sheets. The IMD products are found in more than 2 frequency inputs. 7. Description. Easily create a debt reduction schedule based on the popular debt snowball strategy, or experiment with your own custom strategy. Passive intermodulation (PIM) is the mathematical mixing of two or more desired signals to generate a family of undesired signals. This program calculates mixer intermodulation products upto 5th order and displays graph in amplitude vs. The formula/equation for this RF Intermodulation calculator is also mentioned. 0. To get data at any temperature between 0 and 100 C, we’ll have to interpolate. INTERCEPT Function. cunts pics miele dishwasher inletdrain light flashing 5 times. Intermodulation distortion (IMD) is a popular measure of the linearity of amplifiers, gain blocks,. 1) with the two tone input signal from Eq. Log in / Sign up. Adjacent channel. RF Harmonic Measurement setup. Here, we have two variables, i. This example teaches you how to create a loan amortization schedule in Excel. As a spectrum analyzer also includes non-linear devices like the input mixer or a pre-amplifier, it generates its own intermodulation products, which might have a similar amplitude as the IM products generated by the DUT. 107. Learn more about fft, digital signal processing, signal processing. The output of the mixer occurs at the frequencies: Users interested in Intermod calculator excel generally download: SIFMPRO 1. PIM is a form of intermodulation distortion that occurs in components normally thought of as linear, such as cables, connectors and antennas. , IP3 for units of dBm. Defining PIM. We also have the capability for ATE programming in Labview, HP/Agilent Vee or Visual Basic, and can produce associated. 2. Macros are also available to copy intermodulation frequencies for import into frequency coordination software. Fifth Order. A link budget calculator. List of Production tests on RF/SoC devices. The well known equation found behind all mixer-spurious analysis programs is given by (after the paper by Bert Henderson) in which n and m are (positive and negative) integers. Addressed to RF engineers or Cell Site designers, it provides system calculations for: Passive InterModulation (PIM), Voltage Standing Wave Ratio (VSWR), Effective. . To calculate EVM, we must represent this normalization in terms of voltage. The first major new release of RF Cafe's spreadsheet (Excel) based engineering and science calculator is now available: Espresso Engineering Workbook™. Unlimited calculated intermodulation frequencies output with order of 2 and higher. Written in python3 and go - GitHub - panjacek/PIM_Calculator: Passive Intermodulation Calculator for RF antennas. This makes it simple for you to reach a particular place. Intermod and Harmonic Basics. You can keep the confidential employee register where you can record employee information like name, address, date of joining, annual salary, federal allowances, pre-tax withholdings, post-tax deductions, etc. 4 (x86) File name: sifmpro_setup_1-3-4. The following Microsoft Excel formula performs linear interpolation by calculating the interpolation step value:. This software tool specifically designed for the wireless, professional audio and video industries. Up to 1000 transmit and 1000 receive frequencies can be entered with a frequency range from 0 Hz to 999,999. Interference due to intermodulation generally occurs when at least two transmitters close to the receiving antenna produce very strong signals in the receiver. g. 00 ;($#,##0. 00 MHz. 3. The most bothersome in a relative narrowband system would be the intermodulation products, as they often appear in band. This browser is no longer supported. Moreover, this view allows you to edit the frequency by moving them with the mouse. The IIP3 calculator does IIP3 calculation using IIP3 formula based on gain and OIP3 values. The intercept point is based on a best-fit regression line plotted through the known x-values and known y-values. Click the first number in the series. Tools, utilities and links to help you working with wireless devices. This is a large and very visible forum. If the intermodulation products are very strong then the two areas must be considered as a single zone. Standard RLC Component Calculator. Inserting INDEX- MATCH with FORECAST Function to Interpolate Between two Values. Calculating the third power terms (responsible for the third order intermodulation and third order harmonics) of the Taylor series (Eq. The ' Maximum Order ' parameter on the. Software. SIFM Sennheiser Software. The relationship between the IM3 performance and the output intercept point (OIP3) parameter of the device can be derived. The amount of distortion present in the output is usually a function of several parameters: the small- and large-signal nonlinearity of the amplifier being tested, the amplitude and frequency of the input signal, the load applied to the output of the amplifier, the amplifier’s power supply voltage, printed circuit-board layout, grounding. The component "Frequencies Plan" display the details of all devices continuously (like an Excel spreadsheet) and allow changes to the display (text size, color, etc. Three sequences describe the frequency sum products. f1m is the intermodulation frequency or intermodulation product. C5 - loan amount. 0 MHz that combine in a rectifying circuit, such as an oxidized fence. DCF Formula in Excel. Output overflow bug fixed for outputs greater than 32767 rows. The two signals form intermodulation products at non. When ' Calculate Intermods ' and ' Calculate Harmonics ' are enabled intermods and harmonics will always be created by nonlinear behavioral models. Passive Intermodulation (PIM) occurs when two or more signals are present in a passive device (cable, connector, isolator, switch, etc. * For Excel 2003: The CUMIPMT function. Select Order. For a given frequency, knowing the third order intercept point allows calculation of the approximate level of the third-order IMD products as a function of output signal level. 2. OIP3 calculation is performed using fundamental (f1, f2) and third order intermodulation product powers. Select the cell that contains the result from step 2. In other words, the nonlinear range system gives out additional output signals. 8 November 30, 2005 Paste feature added. Refer cascaded IP3. Here's a step-by-step guide to help you get started: 1. 75%, which is. The third order intermodulation products are: The third order IM3 products are created at: 2f1 + f2, 2f1 – f2, 2f2 – f1 and 2f2 + f1. Download. Fifth Order. Thanks for the calculation, but it does not have any prepayment option to check. e. The system we utilize as an example, shown in Figure 2, is an RF. Intermodulation calculation program. Free Auto Loan, Amortization, Home Equity Loan, and Mortgage Calculators for Microsoft® Excel®. PRFIntermod (PRFIntermod. . Since creating this spreadsheet, I've created many other calculators that let you include extra mortgage payments. exe file inside the installer are Digitally Certified and Signed in order to. This includes the carrier frequencies, power levels, and spacing between transmitters. Intermodulation Point Calculator. LO 1 x Input -1 : 0 dBc. The main source of PIM based distortion is mainly connection or junction between different types of materials. Higher order products are potential sources of intermodThe order O of a given intermodulation product (IMP) is the sum of the absolute values of its frequency coefficients: . The Measurements tab appears when you select Spectrum in the Analyzer tab. “Transmitter” intermod at 309. The result is 0. The cascade analysis includes Noise Figure, Gain, intercept point, power input/output, SNR (in a given bandwidth), etc. The current version V2323 which can be downloaded below, is an intermediate pre-release of V2400 which is under development at present and has some limited functionalities. . Use Excel as your calculator. For example, you could hear strong interference at 14. This work has been developed within the scope of the TelMAX Project and is partially funded by Centro para el Desarrollo Tecnológico e Industrial (CDTI) of the Spanish Ministry of Science and Innovation, under the INGENIO 2010 Program/CENIT call. The IIP2 calculator uses IP2 formula for IIP2 and OIP2 calculations. You can copy one or more entries to and from Excel using this method. Measurement techniques are referred in Rec. Instead of using a calculator, use Microsoft Excel to do the math! You can enter simple formulas to add, divide, multiply, and subtract two or more. Three frequency intermodulation products. LO 0 x Input 3 : -85 dBc. Mixers are non-linear devices used in RF systems. 2KB. 14. We can use a spectrum analyser to show 3rd order intermodulation. F-Intermod calculates RF and optical intermodulation products. obsessing over the other woman. Lets excite this system with two tones: V i = V 1 c o s ( ω 1 t) + V 2 c o s ( ω 2 t)Download a free Credit Card Payoff calculator for Microsoft Excel or Google Sheets that will calculate the payment required to pay off your credit card in a specified number of years, or calculate how long it will take to pay off your card given a specific monthly payment. The third-order intermodulation products are at the frequencies (2⍵1 ∓ ⍵2) and (⍵1 ∓ 2⍵2). See derivation below the calculator. Using intermodulation calculation software will always give you an advantage on any wireless project. Passive Intermodulation Calculator for RF antennas. Here’s how that looks: I created a discount rate named range so that it’s easy to reference the percentage and to change it. The products do not all have the same amplitude, for example the 2A product in 6 dB lower than the A+B product. 5. It is common to talk about the third order intermodulation products as being 2f 1 ±f 2 and 2f 2 ±f 1. pdf lesLabel harmonics (for harmonic distortion) and frequencies (for intermodulation distortion), specified as true or false. More detail in chapter 5. The intermodulation products are also intermittent. 3. The generation and mitigation of these intermodulation products are described in the following sections in more detail. Unlimited calculated intermodulation. Include Length conversions, Reactance and Length of Stubs DXSpotter DXSpotter is a commercial Win32 HAM radio application for working with DX Clusters by using TCP/IP protocol for communications. Select Order. This general RF calculator provides path loss, VSWR and wavelength as well as conversions between many common measurements used in the wireless industry. By moving. beamtilt calculator estimates your radio antenna beam downtilt options based on antenna height above average terrain (HAAT) and vertical beamwidth. STEP 3: Select Commands Not in the Ribbon. Third order distortion causes multiple unwanted products. Intermodulation products are noise sources, and they lower the SNR. PRFIntermod is designed to provide extra assistance. Calculate a percentage of increase. WinRFCalc download page. Auto Update : Input Output None Showing : Difference Frequency Sum Frequency Low Frequency. 00) $#,##0. Step 2: Create headers for Multiplication, Summation, Subtraction, and Square Root in row one. 6 Favorite Free Debt Snowball Spreadsheets for 2023. Third Order. On the Home tab, click . Three sequences describe the frequency sum products. Out of These intermodulation products second order and third order are larger in magnitude and result into interference with the desired signals of interest. Cascading IP3 Values in a Chain of Components. salary difference between assistant and associate professor cookie clicker save editor how many boats can you sell a year in florida readDownload a free calculator for Microsoft Excel or Google Sheets to estimate the future value of your savings account. Scanned by 76 antivirus programs on Oct 11, 2023. 6dBmAs additional frequency bands are added into the mix, the impact of RF interference and passive intermodulation (PIM) increases. The meaning of INTERMODULATION is the production in an electrical device of currents having frequencies equal to the sums and differences of frequencies supplied to the device or of their harmonics. Passive Intermodulation (PIM) calculations and analysis based on component PIM ratings BUILDING MODELING Create multiple buildings Multi-layered oor plans with layout plans, walls, system equipment, cables, and more Import oor plans from . Intermodulation calculator excel. It will estimate the future value of your savings account with optional periodic deposits. The intermodulation between each frequency component will form additional signals at frequencies that are not just at harmonic frequencies of either, but also at the sum and difference frequencies of the original frequencies and at. The table below lists air density as a function of temperature in 20-degree Celsius increments. 99999 nm. Since the test input signal is lower by B dB they will then add this value to calculate ENOB as if the distortion would not increase for a larger input. Uplink EIRP dBW. This calculator. Now, before you shirk away from SNMP traps and start wondering about polling that fault table (as Cisco actually says you can do), let me stop you. SIFM is the Sennheiser Software for rapid calculation of intermodulation-free radio frequencies for wireless microphone systems. Click any blank cell. detailed view. Intermodulation immunity. You can use PV with either periodic, constant payments (such as a mortgage or other loan), or a future value that's your investment goal. It is, IMHO, important to report intermodulation and noise separately, as the intermodulation result, although lost in the noise at lower signal levels, will increase rapidly, and the reporting of actual intermodulation dynamic range and intercept point (IP3) allows some extrapolation between the intermodulation at the noise floor and the. P IN curve showing IP 1dB, OP 1dB, IIP3 and OIP3. The first and last sum products are unique where the first product location is given by equation 10, Eq. Intermodulation products (third order) from. Let's derive the compound annual growth rate of a company's sales over 10 years: The. To do that, I’ll use a formula that takes the cash flow value, multiples it by the discount rate (I’ll use 5%) raised to a negative power (the year). Use the Payment Calculator worksheet (the featured image above) to create an amortization. Non-linear systems generate harmonics in response to. Intermod calculator excel. The total difference for the aggregate. It is wise to use these presets. Its computational engine rapidly generates frequency sets of intermodulation distortion-free radio frequencies, applying user-defined signal bandwidths and. 50 50 OUT 50 40 30 20 10 1 10 100In the cell where you want the ROI to appear, type without any spaces = followed by the name of the cell where you put the amount invested, the forward slash sign (/), and the name of the cell. For a price quote or more information on any of V-Soft Communications' software products please contact us by email or call (319) 266-8402 or (800) 743-3684. The best tech tutorials and in-depth reviews; Try a single issue or save on a subscription. F-Intermod calculates RF and optical intermodulation products. Assume a non-linear memory-less system whose output has up to fifth order of non-linearity. (Consider the "1" as a substitute for 100%. Low-Side LO. AA3RL Transmission Line Calculator Excel spreasheet that calculate virtually every transmission line parameter that one may need. Use the Auto Loan Calculator worksheet to calculate the amount you will need to finance, based on the sales price of the car, destination charge, fees, sales tax, down payment, cash rebate, and trade-in value of an older auto. Continuing the tradition, RF Cafe Espresso Engineering Workbook™ is also provided at no cost, compliments. Triple beat PIM products - the result of three carriers mixing . EXAMPLE of OIP3 to IM3 power levels conversion : INPUT: P low at F1 = 0 dBm, P high at F2 = -12 dBm, OIP3 = 14 dBm OUTPUT: IM3 (low) = -40 dBm, IM3 (high) = -52 dBm, IP3 formula. Use this tool to calculate the frequencies and bandwidths of the passive intermodulation products IM3, IM5, and IM7. CTB Intermodulation Interference Signals CTB intermodulation products are spurious signals due to the cube of the input signal multiplied by the a3 coefficient of the Taylor series expansion. Begin by choosing a spreadsheet software program such as Google Sheets, Microsoft Excel, LibreOffice Calc, or Open Office Calc. Third Order.