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