Browse file extensions by file type category:
Spreadsheet and workbook file type extensions
(166 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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![]() | Microsoft Excel Open XML workbook and spreadsheet |
![]() | Apple Numbers spreadsheet |
file extension _xls | Microsoft Excel workbook |
![]() | Microsoft Excel 97 to 2003 workbook |
QuickBooks interchange format | |
![]() | Lotus 1-2-3 spreadsheet |
![]() | OpenDocument spreadsheet |
![]() | Microsoft Excel binary workbook |
file extension mpj | MINITAB spreadsheet project |
file extension et | Kingsoft Spreadsheets document |
file extension tsv | Tab Separated Values |
![]() | Lotus 1-2-3 version 4.x spreadsheet |
![]() | Lotus 1-2-3 version 2.x spreadsheet |
![]() | Microsoft Excel Open XML macro-enabled workbook |
file extension ms | Maple worksheet |
![]() | PlanMaker spreadsheet |
![]() | Microsoft Works spreadsheet document |
file extension sta | Statistica data spreadsheet |
![]() | Tab Delineated file format |
![]() | Apache OpenOffice 1.0 spreadsheet |
file extension jnb | SigmaPlot workbook |
![]() | ClarisWorks document |
file extension wr1 | Lotus Symphony spreadsheet |
![]() | Navy DIF spreadsheet |
file extension ecsv | Encapsulated Comma Separated Value file |
file extension excel | Microsoft Excel spreadsheet |
Corel Quattro Pro spreadsheet | |
Microsoft Symbolic Link format | |
![]() | Microsoft Excel 97 to 2003 workbook template |
![]() | Lotus 1-2-3 version 3.x spreadsheet |
file extension nmbtemplate | Apple Numbers spreadsheet template |
file extension vc | VisiCalc spreadsheet |
file extension jzz | Lotus Jazz spreadsheet file |
![]() | Microsoft Works spreadsheet |
![]() | Microsoft Excel spreadsheet |
Microsoft Pocket Excel spreadsheet | |
![]() | Corel Quattro Pro spreadsheet |
![]() | OpenDocument Flat XML spreadsheet |
![]() | Microsoft Excel Open XML workbook template |
![]() | Ability Spreadsheet spredsheet |
Quattro Pro for MS-DOS spreadsheet | |
file extension xmlx | Excel spreadsheet |
![]() | OpenOffice.org spreadsheet |
file extension ksp | Calligra Sheets spreadsheet |
Microsoft Excel for Mac spreadsheet | |
![]() | Lotus 1-2-3 spreadsheet |
![]() | Microsoft Excel Symbolic Link format |
Corel Quattro Pro spreadsheet | |
file extension mtp | Minitab portable worksheet |
![]() | OpenOffice.org OpenDocument spreadsheet template |
Corel Quattro Pro spreadsheet | |
Microsoft Excel for Mac spreadsheet | |
file extension skv | Semicolon separated values file |
![]() | OpenOffice.org Calc spreadsheet template |
file extension spw | SLIM-Master Plan workbook |
![]() | Microsoft Excel Open XML macro-enabled workbook template |
![]() | Lotus 1-2-3 version 3.x spreadsheet |
![]() | Lotus 1-2-3 spreadsheet (compressed) |
file extension qvo | QlikView table data |
file extension csvx | XML CSV database |
file extension wkz | Wingz spreadsheet |
Microsoft Excel spreadsheet | |
file extension uos | Unified Office format spreadsheet |
![]() | Microsoft Excel XML worksheet file |
Corel Quattro Pro for MS-DOS spreadsheet | |
file extension xslb | Microsoft Excel data |
file extension xlmx | Microsoft Excel macro-enabled spreadsheet file |
file extension mws | Maple spreadsheet document |
Corel Quattro Pro compressed spreadsheet | |
![]() | PlanMaker spreadsheet template |
file extension pmdx | PlanMaker spreadsheet |
file extension nam | DMAP spreadsheet |
![]() | Lotus 1-2-3 for OS/2 worksheet |
Microsoft Excel for Mac Symbolic Link | |
Corel Quattro Pro for MS-DOS spreadsheet | |
file extension xs4 | XESS worksheet |
Corel Quattro Pro spreadsheet | |
file extension bwb | Visual Baler spreadsheet |
file extension lgx | Logistix spreadsheet |
Microsoft Excel 4 for Mac spreadsheet | |
file extension $$s | OS/2 spreadsheet |
Microsoft Excel 5 for Mac spreadsheet | |
![]() | Lotus 1-2-3 version 2 spreadsheet |
Microsoft Excel 98 for Mac spreadsheet file | |
file extension mtx | Matrix spreadsheet |
![]() | Lotus 1-2-3 version 2 spreadsheet file |
file extension wj3 | Lotus 1-2-3 worksheet |
![]() | Lotus 1-2-3 spreadsheet |
file extension wzk | Wingz compressed spreadsheet |
![]() | Microsoft Excel MIME HTML spreadsheet |
Microsoft Excel 3 for Mac spreadsheet file | |
file extension ett | Kingsoft Spreadsheets template |
file extension otw | Origin worksheet template |
file extension rs1 | RETScreen spreadsheet file |
![]() | Lotus 1-2-3 Educational version spreadsheet |
![]() | Lotus 1-2-3 release 2.x spreadsheet |
file extension spr | Psion Series 3 spreadsheet file |
file extension sxls | Sealed Excel spreadsheet |
![]() | Lotus 1-2-3 version 5 spreadsheet file |
file extension wrk | Lotus Symphony spreadsheet |
file extension ess | EasySpreadsheet spreadsheet |
file extension sht | WaveStar datasheet |
file extension lcw | Lucid 3-D spreadsheet |
file extension xmap | Xmind 2007 or 2008 workbook |
file extension stw | Statistica workbook |
![]() | Lotus Improv spreadsheet |
file extension smx | Statistica matrix spreadsheet file |
file extension tc6 | Calc602 spreadsheet |
file extension sxlsx | Sealed Microsoft Excel 2007 worksheet |
Corel WordPerfect Office spreadsheet | |
file extension cwss | ClarisWorks spreadsheet |
file extension xlsxe | Document Manager encrypted Excel spreadsheet |
![]() | Lotus 1-2-3 version 1.x spreadsheet |
file extension vts | Formula One workbook |
file extension valu | VALU Macintosh spreadsheet |
file extension atf | GenePix Axon text doucment |
Corel Quattro Pro spreadsheet file | |
file extension gsw | GraphShow worksheet |
file extension ogw | OriginLab worksheet |
file extension lss | Legato spreadsheet |
Microsoft Excel 2 for Mac workbook | |
file extension ssf | Enable spreadsheet |
Corel Quattro Pro for MS-DOS spreadsheet | |
file extension tcd | TurboCalc spreadsheet file |
file extension fp | FileMaker Pro database |
file extension ag | Argus spreadsheet |
file extension tii | Texas Instruments TI InterActive! workbook |
Microsoft Excel Symbolic Link format | |
file extension fj3 | Lotus 1-2-3 worksheet |
file extension wkb | Generally workbook |
file extension numbers-tef | Apple Numbers iCloud spreadsheet |
file extension sky | Microsoft Multiplan SYLK spreadsheet |
file extension col | Microsoft Multiplan spreadsheet |
file extension css | Statistica data sheet |
file extension wat | WATFILE data |
file extension ens | Enable spreadsheet |
![]() | Microsoft Works for Mac spreadsheet |
file extension as | Applix spreadsheet |
file extension mod | Microsoft Multiplan spreadsheet |
file extension wks | DeskMate worksheet |
![]() | Lotus 1-2-3 worksheet |
file extension vcx | VisiCalc advanced spreadsheet |
file extension pln | Psion Organiser spreadsheet |
file extension xqt | SuperCalc macro spreadsheet file |
file extension xs5 | XESS worksheet file |
![]() | Ability Spreadsheet template |
file extension spr | Brother Powernote spreadsheet |
![]() | Microsoft Works for Mac spreadsheet |
file extension pxd | Pocket Excel spreadsheet |
file extension pt | PTab spreadsheet |
file extension dwk | DADiSP worksheet |
file extension xss | Ability Office spreadsheet |
file extension siag | SIAG spreadsheet |
Microsoft Excel 3 for Mac template | |
Microsoft Excel 4 for Mac workbook file | |
file extension mar | Mariner Calc spreadsheet file |
file extension t | IRIS spreadsheet |
Microsoft Excel 98 for Mac template | |
file extension faff | Professional Calc spreadsheet file |
Microsoft Excel 5 for Mac template file | |
Microsoft Excel 5 for Mac workbook file | |
Microsoft Excel 3 for Mac workbook | |
Microsoft Excel 4 for Mac template file | |
file extension swss | ClarisWork spreadsheet file |
file extension pmbak | PlanMaker backup |
file extension pmvx | PlanMaker spreadsheet template |
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