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
.CTSTreeSheets Hierarchical Spreadsheet
.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
.GNUMERICGnumeric Spreadsheet
.ODSOpenDocument Spreadsheet
.NUMBERSApple Numbers Spreadsheet
.MARMariner Calc Spreadsheet
.CHIPMicroarray Annotation File
.FODSOpenDocument Flat XML Spreadsheet
.PRESTOPresto Project Spreadsheet
.CELLThinkfree Office NEO Cell Workbook
.BKSMicrosoft Works Spreadsheet Backup File
.RDFReport Definition File
.XARMicrosoft Excel Auto-Recovery File
._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
.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
.PMDXPlanMaker Spreadsheet
.12MLotus 1-2-3 SmartMaster File
.GNMGnumeric Spreadsheet
.EDXEdraw XML FIle
.XLSMHTMLMicrosoft Excel MIME HTML Spreadsheet
.OGWOrigin Workbook File
.ESSEasySpreadsheet Spreadsheet
.WKQQuattro Pro for DOS Spreadsheet File
.WQ1Quattro Pro for DOS Spreadsheet File
.AWSAbility Spreadsheet File
.WKSWorks Spreadsheet
.WR1Lotus Symphony Worksheet File
.PMVPlanMaker Spreadsheet Template
.FCSFirst Choice Spreadsheet
.UOSUniform Office Spreadsheet
.HCDTThinkfree Office NEO Cell Template
.STCStarOffice Calc Spreadsheet Template
.XLTHTMLMicrosoft Excel HTML Spreadsheet Template
.TMVTTimeMap Template
.DFGData Flask Grid File
.WKILotus 2 Worksheet
.WKULotus 1-2-3 Spreadsheet
.WLS602Tab Spreadsheet