Browse file extensions by file type category:
Spreadsheet and workbook file type extensions
(173 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.
Sort by: Extension | Sort by: File type description |
file extension xlsx | Microsoft Excel Open XML workbook and spreadsheet |
file extension numbers | Apple Numbers spreadsheet |
file extension xls | Microsoft Excel 97 to 2003 workbook |
file extension _xls | Microsoft Excel workbook |
file extension xmcd | PTC Mathcad worksheet |
file extension iif | QuickBooks interchange format |
file extension 123 | Lotus 1-2-3 spreadsheet |
file extension ods | OpenDocument spreadsheet |
file extension xlsb | Microsoft Excel binary workbook |
file extension et | Kingsoft Spreadsheets document |
file extension tsv | Tab Separated Values |
file extension mpj | MINITAB spreadsheet project |
file extension xl | Microsoft Excel spreadsheet |
file extension ms | Maple worksheet |
file extension wk4 | Lotus 1-2-3 version 4.x spreadsheet |
file extension sta | Statistica data spreadsheet |
file extension wk1 | Lotus 1-2-3 version 2.x spreadsheet |
file extension xlsm | Microsoft Excel Open XML macro-enabled workbook |
file extension pmd | PlanMaker spreadsheet |
file extension sxc | Apache OpenOffice 1.0 spreadsheet |
file extension wks | Microsoft Works spreadsheet document |
file extension tdl | Tab Delineated file format |
file extension excel | Microsoft Excel spreadsheet |
file extension cwk | ClarisWorks document |
file extension jnb | SigmaPlot workbook |
file extension dif | Navy DIF spreadsheet |
file extension pmdx | PlanMaker spreadsheet |
file extension wr1 | Lotus Symphony spreadsheet |
file extension ecsv | Encapsulated Comma Separated Value file |
file extension nmbtemplate | Apple Numbers spreadsheet template |
file extension vc | VisiCalc spreadsheet |
file extension wb3 | Corel Quattro Pro spreadsheet |
file extension xlt | Microsoft Excel 97 to 2003 workbook template |
file extension wk3 | Lotus 1-2-3 version 3.x spreadsheet |
file extension slk | Microsoft Symbolic Link format |
file extension pxl | Microsoft Pocket Excel spreadsheet |
file extension jzz | Lotus Jazz spreadsheet file |
file extension xltx | Microsoft Excel Open XML workbook template |
file extension ksp | Calligra Sheets spreadsheet |
file extension ks | Microsoft Works spreadsheet |
file extension wq1 | Quattro Pro for MS-DOS spreadsheet |
file extension qpw | Corel Quattro Pro spreadsheet |
file extension silk | Microsoft Excel Symbolic Link format |
file extension fods | OpenDocument Flat XML spreadsheet |
file extension aws | Ability Spreadsheet spredsheet |
file extension sdc | OpenOffice.org spreadsheet |
file extension xmlx | Excel spreadsheet |
file extension mtx | Matrix spreadsheet |
file extension wk! | Lotus 1-2-3 spreadsheet |
file extension ots | OpenOffice.org OpenDocument spreadsheet template |
file extension xls_ | Microsoft Excel for Mac spreadsheet |
file extension wb1 | Corel Quattro Pro spreadsheet |
file extension xcel | Microsoft Excel for Mac spreadsheet |
file extension mtp | Minitab portable worksheet |
file extension wb2 | Corel Quattro Pro spreadsheet |
file extension spw | SLIM-Master Plan workbook |
file extension skv | Semicolon separated values file |
file extension stc | OpenOffice.org Calc spreadsheet template |
file extension dex | Microsoft Excel spreadsheet |
file extension fm3 | Lotus 1-2-3 version 3.x spreadsheet |
file extension xltm | Microsoft Excel Open XML macro-enabled workbook template |
file extension wkz | Wingz spreadsheet |
file extension uos | Unified Office format spreadsheet |
file extension wkq | Corel Quattro Pro for MS-DOS spreadsheet |
file extension csvx | XML CSV database |
file extension wr! | Lotus 1-2-3 spreadsheet (compressed) |
file extension mws | Maple spreadsheet document |
file extension vts | Formula One workbook |
file extension wq! | Corel Quattro Pro compressed spreadsheet |
file extension qvo | QlikView table data |
file extension xslb | Microsoft Excel data |
file extension pmv | PlanMaker spreadsheet template |
file extension xlmx | Microsoft Excel macro-enabled spreadsheet file |
file extension xlxml | Microsoft Excel XML worksheet file |
file extension nam | DMAP spreadsheet |
file extension wq2 | Corel Quattro Pro for MS-DOS spreadsheet |
file extension xs4 | XESS worksheet |
file extension $$s | OS/2 spreadsheet |
file extension sylk | Microsoft Excel for Mac Symbolic Link |
file extension wb0 | Corel Quattro Pro spreadsheet |
file extension wg2 | Lotus 1-2-3 for OS/2 worksheet |
file extension ett | Kingsoft Spreadsheets template |
file extension bwb | Visual Baler spreadsheet |
file extension xls5 | Microsoft Excel 5 for Mac spreadsheet |
file extension wk2 | Lotus 1-2-3 version 2 spreadsheet |
file extension xls4 | Microsoft Excel 4 for Mac spreadsheet |
file extension lgx | Logistix spreadsheet |
file extension xls8 | Microsoft Excel 98 for Mac spreadsheet file |
file extension xlsmhtml | Microsoft Excel MIME HTML spreadsheet |
file extension wj3 | Lotus 1-2-3 worksheet |
file extension wku | Lotus 1-2-3 spreadsheet |
file extension wzk | Wingz compressed spreadsheet |
file extension rs1 | RETScreen spreadsheet file |
file extension wki | Lotus 1-2-3 version 2 spreadsheet file |
file extension pln | Corel WordPerfect Office spreadsheet |
file extension otw | Origin worksheet template |
file extension wke | Lotus 1-2-3 Educational version spreadsheet |
file extension wrk | Lotus Symphony spreadsheet |
file extension wk5 | Lotus 1-2-3 version 5 spreadsheet file |
file extension xls3 | Microsoft Excel 3 for Mac spreadsheet file |
file extension spr | Psion Series 3 spreadsheet file |
file extension sxls | Sealed Excel spreadsheet |
file extension ess | EasySpreadsheet spreadsheet |
file extension stw | Statistica workbook |
file extension imp | Lotus Improv spreadsheet |
file extension sht | WaveStar datasheet |
file extension xmap | Xmind 2007 or 2008 workbook |
file extension fm1 | Lotus 1-2-3 release 2.x spreadsheet |
file extension wq0 | Corel Quattro Pro for MS-DOS spreadsheet |
file extension lcw | Lucid 3-D spreadsheet |
file extension sxlsx | Sealed Microsoft Excel 2007 worksheet |
file extension smx | Statistica matrix spreadsheet file |
file extension ssf | Enable spreadsheet |
file extension wks | Lotus 1-2-3 version 1.x spreadsheet |
file extension atf | GenePix Axon text doucment |
file extension xlsxe | Document Manager encrypted Excel spreadsheet |
file extension wb? | Corel Quattro Pro spreadsheet file |
file extension tc6 | Calc602 spreadsheet |
file extension cwss | ClarisWorks spreadsheet |
file extension sky | Microsoft Multiplan SYLK spreadsheet |
file extension gsw | GraphShow worksheet |
file extension ogw | OriginLab worksheet |
file extension valu | VALU Macintosh spreadsheet |
file extension lss | Legato spreadsheet |
file extension tcd | TurboCalc spreadsheet file |
file extension xlw_ | Microsoft Excel 2 for Mac workbook |
file extension fp | FileMaker Pro database |
file extension ag | Argus spreadsheet |
file extension tii | Texas Instruments TI InterActive! workbook |
file extension syk | Microsoft Excel Symbolic Link format |
file extension mod | Microsoft Multiplan spreadsheet |
file extension as | Applix / IBM Cognos spreadsheet |
file extension css | Statistica data sheet |
file extension numbers-tef | Apple Numbers iCloud spreadsheet |
file extension col | Microsoft Multiplan spreadsheet |
file extension vcx | VisiCalc advanced spreadsheet |
file extension wat | WATFILE data |
file extension fj3 | Lotus 1-2-3 worksheet |
file extension wss | Microsoft Works for Mac spreadsheet |
file extension ens | Enable spreadsheet |
file extension wks | DeskMate worksheet |
file extension wkb | Generally workbook |
file extension spr | Brother Powernote spreadsheet |
file extension xqt | SuperCalc macro spreadsheet file |
file extension wg1 | Lotus 1-2-3 worksheet |
file extension pxd | Pocket Excel spreadsheet |
file extension xs5 | XESS worksheet file |
file extension awss | Microsoft Works for Mac spreadsheet |
file extension ast | Ability Spreadsheet template |
file extension pln | Psion Organiser spreadsheet |
file extension siag | SIAG spreadsheet |
file extension xss | Ability Office spreadsheet |
file extension pt | PTab spreadsheet |
file extension dwk | DADiSP worksheet |
file extension xlw5 | Microsoft Excel 5 for Mac workbook file |
file extension pmvx | PlanMaker spreadsheet template |
file extension xlw4 | Microsoft Excel 4 for Mac workbook file |
file extension mar | Mariner Calc spreadsheet file |
file extension pmbak | PlanMaker backup |
file extension faff | Professional Calc spreadsheet file |
file extension sls3 | Microsoft Excel 3 for Mac template |
file extension t | IRIS spreadsheet |
file extension sls4 | Microsoft Excel 4 for Mac template file |
file extension sls5 | Microsoft Excel 5 for Mac template file |
file extension sls8 | Microsoft Excel 98 for Mac template |
file extension xlw3 | Microsoft Excel 3 for Mac workbook |
file extension swss | ClarisWork spreadsheet file |
file extension sc | Xspread spreadsheet |
file extension gnumeric | Gnumeric sheet |
file extension psisheet | Psion 5 sheet |
file extension gnm | Gnumeric sheet |
file extension mps | IBM Linear and Integer Program Expression data |
file extension oleo | GNU Oleo spreadsheet |