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