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