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Spreadsheet File Types

Spreadsheet files store data in cells, which are organized into rows and columns. Each cell may contain a certain type of data, such as a text string, number, or date. Cells may also contain formulas, which reference other cells.

Common spreadsheet file extensions include .XLSX, .ODS, and .NUMBERS.

Extension File Description Popularity
.123Lotus 1-2-3 Spreadsheet★★★☆☆
.astAbility Spreadsheet Template★★☆☆☆
.awsAbility Spreadsheet File★★★☆☆
.bksMicrosoft Works Spreadsheet Backup File★★☆☆☆
.defSmartWare II Data File★★☆☆☆
.dexExcel Spreadsheet★☆☆☆☆
.dfgData Flask Grid File★★☆☆☆
.disOracle Discoverer Workbook★★☆☆☆
.edxEdraw XML FIle★★★☆☆
.edxzEdraw Compressed XML FIle★★★☆☆
.essEasySpreadsheet Spreadsheet★☆☆☆☆
.fcsFirst Choice Spreadsheet★☆☆☆☆
.fmFileMaker Database★★☆☆☆
.fodsOpenDocument Flat XML Spreadsheet★★★☆☆
.fpFileMaker Pro Spreadsheet★★☆☆☆
.gsheetGoogle Drive Spreadsheet★★★★☆
.impImprov Spreadsheet★☆☆☆☆
.marMariner Calc Spreadsheet★★☆☆☆
.nbMathematica Notebook★★★★☆
.nmbtemplateNumbers Spreadsheet Template★★☆☆☆
.numbersNumbers Spreadsheet File★★★★☆
.numbers-tefNumbers iCloud Document★★★☆☆
.odsOpenDocument Spreadsheet★★★★☆
.otsOpenDocument Spreadsheet Template★★★☆☆
.pmdPlanMaker Spreadsheet★★★☆☆
.pmvPlanMaker Spreadsheet Template★★☆☆☆
.qpwQuattro Pro Spreadsheet★★★★☆
.rdfReport Definition File★★★☆☆
.sdcApache OpenOffice Calc Spreadsheet★★★☆☆
.stcStarOffice Calc Spreadsheet Template★★☆☆☆
.sxcStarOffice Calc Spreadsheet★★★☆☆
.tmvTimeMap Visual★★★★☆
.tmvtTimeMap Template★★☆☆☆
.uosUniform Office Spreadsheet★★★☆☆
.wkiLotus 2 Worksheet★☆☆☆☆
.wksLotus 1-2-3 Spreadsheet★★☆☆☆
.wksWorks Spreadsheet★★★★☆
.wkuLotus 1-2-3 Spreadsheet★☆☆☆☆
.wq1Quattro Pro for DOS Spreadsheet File★☆☆☆☆
.wq2Quattro Pro for DOS Spreadsheet File★☆☆☆☆
.xarExcel Auto-Recovery File★★★☆☆
.xlExcel Spreadsheet★★☆☆☆
.xlrWorks Spreadsheet★★★★★
.xlsExcel Spreadsheet★★★★★
.xlsbExcel Binary Spreadsheet★★★★☆
.xlshtmlMicrosoft Excel HTML Spreadsheet★☆☆☆☆
.xlsmExcel Open XML Macro-Enabled Spreadsheet★★★☆☆
.xlsmhtmlMicrosoft Excel MIME HTML Spreadsheet★☆☆☆☆
.xlsxMicrosoft Excel Open XML Spreadsheet★★★★★
.xlthtmlMicrosoft Excel HTML Spreadsheet Template★☆☆☆☆
.xltmExcel Open XML Macro-Enabled Spreadsheet Template★★★★☆
.xltxExcel Open XML Spreadsheet Template★★★★☆