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.

Extension File Type Popularity
.XLSMMicrosoft Excel Macro-Enabled Spreadsheet
.XLSMicrosoft Excel Spreadsheet (Legacy)
.XLSXMicrosoft Excel Spreadsheet
.123Lotus 1-2-3 Spreadsheet
.GNUMERICGnumeric Spreadsheet
.DEXMicrosoft Excel Spreadsheet
.DEFSmartWare II Data File
.XLMicrosoft Excel Spreadsheet
.NUMBERSApple Numbers Spreadsheet
.NBMathematica Notebook
.NUMBERS-TEFNumbers iCloud Document
.PMVXPlanMaker Spreadsheet Template
.XLTMMicrosoft Excel Macro-Enabled Spreadsheet Template
.XLSBMicrosoft Excel Binary Spreadsheet
.SXCStarOffice Calc Spreadsheet
.XLRWorks Spreadsheet
.ODSOpenDocument Spreadsheet
.IMPImprov Spreadsheet
.MARMariner Calc Spreadsheet
.BKSMicrosoft Works Spreadsheet Backup File
.EFUEverything File List
.OTSOpenDocument Spreadsheet Template
.PRESTOPresto Project Spreadsheet
.EDXZEdraw Compressed XML FIle
.CELLThinkfree Office NEO Cell Workbook
.RDFReport Definition File
.XARMicrosoft Excel Auto-Recovery File
._XLSRenamed Microsoft Excel Spreadsheet (Legacy)
.PMDPlanMaker Spreadsheet
.NMBTEMPLATENumbers Spreadsheet Template
.SDCApache OpenOffice Calc Spreadsheet
.XLSHTMLMicrosoft Excel HTML Spreadsheet
.XLTXMicrosoft Excel Spreadsheet Template
.TMVTimeMap Visual
.FPFileMaker Pro Spreadsheet
.WQ2Quattro Pro for DOS Spreadsheet File
._XLSXRenamed Microsoft Excel Spreadsheet
.QPWQuattro Pro Spreadsheet
.GSHEETGoogle Sheets Shortcut
.FODSOpenDocument Flat XML Spreadsheet
.OGWUOrigin Unicode Workbook File
.ASTAbility Spreadsheet Template
.FMFileMaker Database
.NCSSNCSS Dataset File
.WKSLotus 1-2-3 Spreadsheet
.DISOracle Discoverer Workbook
.12MLotus 1-2-3 SmartMaster File
.PMDXPlanMaker Spreadsheet
.GNMGnumeric Spreadsheet
.EDXEdraw XML FIle
.OGWOrigin Workbook File
.ESSEasySpreadsheet Spreadsheet
.WKQQuattro Pro for DOS Spreadsheet File
.AWSAbility Spreadsheet File
.XLSMHTMLMicrosoft Excel MIME HTML Spreadsheet
.WKSWorks Spreadsheet
.WQ1Quattro Pro for DOS Spreadsheet File
.STCStarOffice Calc Spreadsheet Template
.XLTHTMLMicrosoft Excel HTML Spreadsheet Template
.FCSFirst Choice Spreadsheet
.CHIPMicroarray Annotation File
.WR1Lotus Symphony Worksheet File
.HCDTThinkfree Office NEO Cell Template
.UOSUniform Office Spreadsheet
.PMVPlanMaker Spreadsheet Template
.TMVTTimeMap Template
.DFGData Flask Grid File
.WKULotus 1-2-3 Spreadsheet
.WKILotus 2 Worksheet
.WLS602Tab Spreadsheet