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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.

File Extension File Type Popularity
.NUMBERS-TEFNumbers iCloud Document
.XLSMExcel Open XML Macro-Enabled Spreadsheet
.XLSExcel Spreadsheet
.XLSXMicrosoft Excel Open XML Spreadsheet
.123Lotus 1-2-3 Spreadsheet
.GNUMERICGnumeric Spreadsheet
.XLSBExcel Binary Spreadsheet
.DEFSmartWare II Data File
.DEXExcel Spreadsheet
.XLExcel Spreadsheet
.XLRWorks Spreadsheet
.SXCStarOffice Calc Spreadsheet
.ODSOpenDocument Spreadsheet
.NBMathematica Notebook
.XARExcel Auto-Recovery File
.NMBTEMPLATENumbers Spreadsheet Template
.BKSMicrosoft Works Spreadsheet Backup File
.NUMBERSNumbers Spreadsheet File
.IMPImprov Spreadsheet
.FPFileMaker Pro Spreadsheet
.RDFReport Definition File
._XLSXRenamed Microsoft Excel Open XML Spreadsheet
.XLTMExcel Open XML Macro-Enabled Spreadsheet Template
._XLSRenamed Microsoft Excel Spreadsheet
.OTSOpenDocument Spreadsheet Template
.PMDPlanMaker Spreadsheet
.XLTXExcel Open XML Spreadsheet Template
.EDXZEdraw Compressed XML FIle
.XLSHTMLMicrosoft Excel HTML Spreadsheet
.CELLThinkfree Office NEO Cell Workbook
.SDCApache OpenOffice Calc Spreadsheet
.GSHEETGoogle Drive Spreadsheet Link File
.QPWQuattro Pro Spreadsheet
.FODSOpenDocument Flat XML Spreadsheet
.OGWUOrigin Unicode Workbook File
.PMVXPlanMaker Spreadsheet Template
.FMFileMaker Database
.WKSLotus 1-2-3 Spreadsheet
.WQ2Quattro Pro for DOS Spreadsheet File
.TMVTimeMap Visual
.DISOracle Discoverer Workbook
.PMDXPlanMaker Spreadsheet
.EDXEdraw XML FIle
.ASTAbility Spreadsheet Template
.ESSEasySpreadsheet Spreadsheet
.GNMGnumeric Spreadsheet
.UOSUniform Office Spreadsheet
.XLSMHTMLMicrosoft Excel MIME HTML Spreadsheet
.12MLotus 1-2-3 SmartMaster File
.WKQQuattro Pro for DOS Spreadsheet File
.AWSAbility Spreadsheet File
.WQ1Quattro Pro for DOS Spreadsheet File
.WKSWorks Spreadsheet
.PMVPlanMaker Spreadsheet Template
.MARMariner Calc Spreadsheet
.OGWOrigin Workbook File
.WR1Lotus Symphony Worksheet File
.NCSSNCSS Dataset File
.FCSFirst Choice Spreadsheet
.STCStarOffice Calc Spreadsheet Template
.HCDTThinkfree Office NEO Cell Template
.TMVTTimeMap Template
.DFGData Flask Grid File
.WKILotus 2 Worksheet
.XLTHTMLMicrosoft Excel HTML Spreadsheet Template
.WKULotus 1-2-3 Spreadsheet