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