Browse file extensions by file type category:
Spreadsheet and workbook file type extensions
(163 file extension database entries)
File extensions used for various spreadsheets and workbook formats
Spreadsheet and workbook file extension list
File extensions used for various spreadsheets and workbook formats.
A spreadsheet is a computer application or program, which simulates a paper, or accounting worksheet. It displays multiple cells that together make up a grid consisting of rows and columns, with each cell containing alphanumeric text, numeric values or formulas. A formula defines how the content of that cell is to be calculated from the contents of any other cell (or combination of cells) each time any cell is updated. Spreadsheets are frequently used for statistical or financial information because of their ability to re-calculate the entire sheet automatically after a change to a single cell is made.
Visicalc is usually considered the first spreadsheet program, and it helped turn the Apple II computer into a success and greatly assisted in their widespread application. Lotus 1-2-3 was the leading spreadsheet when MS-DOS was the dominant operating system on the market. Microsoft Excel (.xls, .xlsx) now has the largest market share on the Windows and MacOS platforms, but you can find many other spreadsheet programs, often as part of some office productivity bundles, for example IBM Lotus 1-2-3 (.123), Numbers (.numbers), OpenOffice.org Calc, LibreOffice Calc (.ods), Gnumeric, Quatro Pro (.qpw) and more.
This category of file extensions is made up by files that are generally the proprietary output format of certain programs, or generally accepted standards and exchange formats supported in almost every modern spreadsheet editor.
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![]() | Apple Numbers spreadsheet |
![]() | Microsoft Excel Open XML workbook and spreadsheet |
![]() | Microsoft Excel 97 to 2003 workbook |
QuickBooks interchange format | |
file extension _xls | Microsoft Excel workbook |
![]() | Lotus 1-2-3 spreadsheet |
file extension tsv | Tab Separated Values |
![]() | OpenDocument spreadsheet |
file extension mpj | MINITAB spreadsheet project |
![]() | Lotus 1-2-3 version 4.x spreadsheet |
![]() | Lotus 1-2-3 version 2.x spreadsheet |
file extension et | Kingsoft Spreadsheets document |
![]() | Microsoft Excel Open XML macro-enabled workbook |
![]() | Microsoft Works spreadsheet document |
![]() | Microsoft Excel binary workbook |
![]() | ClarisWorks document |
![]() | PlanMaker spreadsheet |
file extension jnb | SigmaPlot workbook |
file extension sta | Statistica data spreadsheet |
file extension wr1 | Lotus Symphony spreadsheet |
file extension ecsv | Encapsulated Comma Separated Value |
![]() | Apache OpenOffice 1.0 spreadsheet |
Corel Quattro Pro spreadsheet | |
![]() | Tab Delineated file format |
![]() | Navy DIF spreadsheet |
Microsoft Symbolic Link format | |
![]() | Lotus 1-2-3 version 3.x spreadsheet |
![]() | Microsoft Excel 97 to 2003 workbook template |
Microsoft Pocket Excel spreadsheet | |
![]() | Corel Quattro Pro spreadsheet |
Quattro Pro for MS-DOS spreadsheet | |
![]() | Microsoft Works spreadsheet |
![]() | Microsoft Excel spreadsheet |
file extension nmbtemplate | Apple Numbers spreadsheet template |
![]() | Microsoft Excel Open XML workbook template |
Microsoft Excel for Mac spreadsheet | |
![]() | Ability Spreadsheet spredsheet |
file extension xmlx | Excel spreadsheet |
![]() | Lotus 1-2-3 spreadsheet |
file extension vc | VisiCalc spreadsheet |
file extension ms | Maple worksheet |
![]() | Microsoft Excel Symbolic Link format |
Corel Quattro Pro spreadsheet | |
file extension mtp | Minitab portable worksheet |
Corel Quattro Pro spreadsheet | |
file extension xslb | Microsoft Excel data |
file extension excel | Microsoft Excel file |
file extension ksp | Calligra Sheets spreadsheet |
![]() | OpenOffice.org OpenDocument spreadsheet template |
![]() | OpenOffice.org spreadsheet |
![]() | OpenOffice.org Calc spreadsheet template |
![]() | Lotus 1-2-3 version 3.x spreadsheet |
file extension skv | Semicolon separated values file |
![]() | Microsoft Excel Open XML macro-enabled workbook template |
Microsoft Excel for Mac spreadsheet | |
file extension qvo | QlikView table data |
![]() | Lotus 1-2-3 spreadsheet (compressed) |
file extension spw | SLIM-Master Plan workbook file |
![]() | OpenDocument Flat XML spreadsheet file |
file extension uos | Unified Office format spreadsheet file |
![]() | Lotus 1-2-3 for OS/2 worksheet |
Corel Quattro Pro for MS-DOS spreadsheet | |
file extension jzz | Lotus Jazz spreadsheet file |
![]() | Microsoft Excel XML worksheet file |
file extension lgx | Logistix spreadsheet |
Corel Quattro Pro for MS-DOS spreadsheet | |
file extension csvx | XML CSV database |
Corel Quattro Pro compressed spreadsheet | |
file extension $$s | OS/2 spreadsheet |
file extension xlmx | Microsoft Excel macro-enabled spreadsheet file |
file extension nam | DMAP spreadsheet file |
Microsoft Excel for Mac Symbolic Link | |
file extension bwb | Visual Baler spreadsheet file |
file extension wkz | Wingz spreadsheet |
Microsoft Excel spreadsheet file | |
![]() | PlanMaker spreadsheet template |
file extension xs4 | XESS worksheet |
Microsoft Excel 4 for Mac spreadsheet | |
file extension mws | Maple spreadsheet document file |
file extension sxls | Sealed Excel spreadsheet file |
Microsoft Excel 5 for Mac spreadsheet | |
Corel Quattro Pro spreadsheet file | |
Microsoft Excel 3 for Mac spreadsheet file | |
![]() | Lotus 1-2-3 version 2 spreadsheet file |
![]() | Lotus 1-2-3 spreadsheet |
file extension wzk | Wingz compressed spreadsheet |
file extension sxlsx | Sealed Microsoft Excel 2007 worksheet file |
file extension ett | Kingsoft Spreadsheets template |
![]() | Lotus 1-2-3 version 2 spreadsheet |
file extension rs1 | RETScreen spreadsheet file |
![]() | Lotus 1-2-3 Educational version spreadsheet file |
![]() | Lotus 1-2-3 version 5 spreadsheet file |
Microsoft Excel 2 for Mac workbook | |
file extension wkb | Generally workbook |
![]() | Lotus 1-2-3 version 1.x spreadsheet file |
Microsoft Excel 98 for Mac spreadsheet file | |
file extension atf | GenePix Axon text file |
file extension gsw | GraphShow worksheet file |
![]() | Microsoft Excel MIME HTML spreadsheet |
Corel Quattro Pro for MS-DOS spreadsheet | |
file extension lcw | Lucid 3-D spreadsheet file |
file extension otw | Origin worksheet template file |
file extension sht | WaveStar datasheet |
![]() | Lotus 1-2-3 release 2.x spreadsheet |
![]() | Lotus Improv spreadsheet file |
Corel Quattro Pro spreadsheet file | |
file extension wrk | Lotus Symphony spreadsheet |
file extension ess | EasySpreadsheet spreadsheet |
file extension tcd | TurboCalc spreadsheet file |
file extension ag | Argus spreadsheet |
file extension fj3 | Lotus 1-2-3 worksheet |
file extension wj3 | Lotus 1-2-3 worksheet |
file extension lss | Legato spreadsheet |
file extension ogw | OriginLab worksheet |
file extension ssf | Enable spreadsheet file |
file extension tii | Texas Instruments TI InterActive! workbook file |
file extension wat | WATFILE file |
Microsoft Excel Symbolic Link format file | |
file extension mtx | Matrix spreadsheet |
file extension vts | Formula One workbook file |
file extension xmap | Xmind 2007 or 2008 workbook |
file extension spr | Psion Series 3 spreadsheet file |
file extension xlsxe | Document Manager encrypted Excel spreadsheet |
file extension css | Statistica data sheet file |
file extension stw | Statistica workbook |
file extension smx | Statistica matrix spreadsheet file |
file extension cwss | ClarisWorks spreadsheet file |
file extension col | Microsoft Multiplan spreadsheet |
file extension pln | Psion Organiser spreadsheet file |
file extension tc6 | Calc602 spreadsheet file |
file extension fp | FileMaker Pro database file |
file extension mod | Microsoft Multiplan spreadsheet file |
file extension xqt | SuperCalc macro spreadsheet file |
file extension valu | VALU Macintosh spreadsheet file |
file extension wks | DeskMate worksheet file |
file extension numbers-tef | Apple Numbers iCloud spreadsheet file |
file extension sky | Microsoft Multiplan SYLK spreadsheet |
Corel WordPerfect Office spreadsheet file | |
file extension xs5 | XESS worksheet file |
![]() | Microsoft Works for Mac spreadsheet file |
file extension as | Applix spreadsheet file |
![]() | Ability Spreadsheet template file |
file extension xss | Ability Office spreadsheet file |
![]() | Microsoft Works for Mac spreadsheet file |
Microsoft Excel 3 for Mac template file | |
![]() | Lotus 1-2-3 worksheet file |
file extension siag | SIAG spreadsheet file |
file extension dwk | DADiSP worksheet file |
file extension pt | PTab spreadsheet file |
file extension spr | Brother Powernote spreadsheet file |
file extension pxd | Pocket Excel spreadsheet |
file extension mar | Mariner Calc spreadsheet file |
file extension faff | Professional Calc spreadsheet file |
file extension vcx | VisiCalc Advanced spreadsheet file |
file extension t | IRIS spreadsheet file |
Microsoft Excel 4 for Mac workbook file | |
file extension ens | Enable spreadsheet file |
Microsoft Excel 3 for Mac workbook file | |
Microsoft Excel 5 for Mac template file | |
Microsoft Excel 5 for Mac workbook file | |
Microsoft Excel 4 for Mac template file | |
file extension swss | ClarisWork spreadsheet file |
Microsoft Excel 98 for Mac template file |
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