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Spreadsheet Files

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.

File Extension File Type Popularity
.NUMBERS-TEFNumbers iCloud Document
.XLSMExcel Open XML Macro-Enabled Spreadsheet
.123Lotus 1-2-3 Spreadsheet
.DEFSmartWare II Data File
.XLSExcel Spreadsheet
.XLSXMicrosoft Excel Open XML Spreadsheet
.GNUMERICGnumeric Spreadsheet
.XLExcel Spreadsheet
.XLSBExcel Binary Spreadsheet
.DEXExcel Spreadsheet
.XLRWorks Spreadsheet
.SXCStarOffice Calc Spreadsheet
.ODSOpenDocument Spreadsheet
.NBMathematica Notebook
.NMBTEMPLATENumbers Spreadsheet Template
.BKSMicrosoft Works Spreadsheet Backup File
.XARExcel Auto-Recovery File
.NUMBERSNumbers Spreadsheet File
.IMPImprov Spreadsheet
.FPFileMaker Pro Spreadsheet
.RDFReport Definition File
._XLSXRenamed Microsoft Excel Open XML Spreadsheet
.OTSOpenDocument Spreadsheet Template
.PMDPlanMaker Spreadsheet
.EDXZEdraw Compressed XML FIle
.XLTXExcel Open XML Spreadsheet Template
.XLSHTMLMicrosoft Excel HTML Spreadsheet
.CELLThinkfree Office NEO Cell Workbook
.SDCApache OpenOffice Calc Spreadsheet
.XLTMExcel Open XML Macro-Enabled Spreadsheet Template
._XLSRenamed Microsoft Excel Spreadsheet
.QPWQuattro Pro Spreadsheet
.PMVXPlanMaker Spreadsheet Template
.FODSOpenDocument Flat XML Spreadsheet
.FMFileMaker Database
.GSHEETGoogle Drive Spreadsheet Link File
.OGWUOrigin Unicode Workbook File
.WKSLotus 1-2-3 Spreadsheet
.TMVTimeMap Visual
.DISOracle Discoverer Workbook
.WQ2Quattro Pro for DOS Spreadsheet File
.PMDXPlanMaker Spreadsheet
.EDXEdraw XML FIle
.UOSUniform Office Spreadsheet
.ESSEasySpreadsheet Spreadsheet
.GNMGnumeric Spreadsheet
.XLSMHTMLMicrosoft Excel MIME HTML Spreadsheet
.AWSAbility Spreadsheet File
.12MLotus 1-2-3 SmartMaster File
.PMVPlanMaker Spreadsheet Template
.WQ1Quattro Pro for DOS Spreadsheet File
.FCSFirst Choice Spreadsheet
.MARMariner Calc Spreadsheet
.STCStarOffice Calc Spreadsheet Template
.HCDTThinkfree Office NEO Cell Template
.WR1Lotus Symphony Worksheet File
.OGWOrigin Workbook File
.NCSSNCSS Dataset File
.WKSWorks Spreadsheet
.ASTAbility Spreadsheet Template
.TMVTTimeMap Template
.DFGData Flask Grid File
.WKILotus 2 Worksheet
.XLTHTMLMicrosoft Excel HTML Spreadsheet Template
.WKULotus 1-2-3 Spreadsheet
.WKQQuattro Pro for DOS Spreadsheet File