Spreadsheet and workbook file extensions list

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.

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

Spreadsheet and workbook file extensions

Browse file extensions by file type category:

Spreadsheet and workbook file extension list

File extensions used for various spreadsheets and workbook formats.

Browse by extension type: