.123 | IBM | Spreadsheet Files | Lotus 1-2-3 Spreadsheet | Apache OpenOffice | Apache Software Foundation |
.12M | IBM | Spreadsheet Files | Lotus 1-2-3 SmartMaster File | IBM Collaboration Solutions | IBM |
.AST | Apple | Spreadsheet Files | ClarisWorks Assistant File | Apple AppleWorks | Apple |
.AVF | SourceForge | Spreadsheet Files | Avermedia Recorded Video Backup | Project X | SourceForge |
.AWS | Autodesk, Inc. | Spreadsheet Files | AutoCAD Work Space File | Autodesk AutoCAD Ecscad | Autodesk, Inc. |
.BKS | Microsoft Corporation | Spreadsheet Files | NTBackup Settings File | Microsoft Windows NT Backup - Restore Utility | Microsoft Corporation |
.BWB | Baler Software | Spreadsheet Files | Visual Baler Spreadsheet | Visual Baler | Baler Software |
.CELL | Hancom, Inc. | Spreadsheet Files | Thinkfree Office NEO Cell Workbook | Thinkfree Office NEO | Hancom, Inc. |
.COL | Open Source | Spreadsheet Files | Bibexcel File | BibExcel | Open Source |
.DEF | Microsoft Corporation | Spreadsheet Files | Module Definition File | Microsoft Visual Studio | Microsoft Corporation |
.DFG | Interscape | Spreadsheet Files | Data Flask Grid File | Interscape Data Flask | Interscape |
.EDDX | EdrawSoft | Spreadsheet Files | Edraw XML FIle | Edraw Max | EdrawSoft |
.EDX | EdrawSoft | Spreadsheet Files | Edraw XML FIle | Edraw Max | EdrawSoft |
.ESS | Bethesda Softworks | Spreadsheet Files | The Elder Scrolls Saved Game | Skyrim VR | Bethesda Softworks |
.FAFF | Unknown Developer | Spreadsheet Files | Professional Calc Spreadsheet File | Professional Calc | Unknown Developer |
.FCS | Interscape | Spreadsheet Files | Flow Cytometry Standard File | Verity Software House V-Comp | Interscape |
.FM | Adobe Systems Incorporated | Spreadsheet Files | FrameMaker Document | Adobe FrameMaker | Adobe Systems Incorporated |
.FP | FileMaker Inc. | Spreadsheet Files | FileMaker Pro Spreadsheet | FileMaker Pro | FileMaker Inc. |
.GNUMERIC | Open Source | Spreadsheet Files | Gnumeric Spreadsheet | Gnumeric | Open Source |
.GSH | Microsoft Corporation | Spreadsheet Files | Microsoft Visual Studio Data File | Microsoft Visual Studio | Microsoft Corporation |
.GSHEET | Google | Spreadsheet Files | Google Drive Spreadsheet | Google Drive | Google |
.GSW | Unknown Developer | Spreadsheet Files | GraphShow Worksheet File | Unknown Software | Unknown Developer |
.IMP | Lotus Software | Spreadsheet Files | Improv Spreadsheet File | Lotus 1-2-3 | IBM |
.JZZ | Lotus Software | Spreadsheet Files | Lotus Jazz Spreadsheet File | Lotus Jazz | Lotus Software |
.LCW | Lucid Technologies, Inc | Spreadsheet Files | Lucid 3-D Spreadsheet | Lucid 3-D | Lucid Technologies, Inc |
.MAR | Microsoft Corporation | Spreadsheet Files | Microsoft Access Report | Microsoft Access | Microsoft Corporation |
.NB | Wolfram Research | Spreadsheet Files | Mathematica Notebook | Wolfram Research Mathematica | Wolfram Research |
.NUMBERS | Apple | Spreadsheet Files | Numbers Spreadsheet File | Numbers | Apple |
.ODS | Oracle Corporation | Spreadsheet Files | OpenDocument Spreadsheet | Microsoft Excel | Microsoft Corporation |
.OGW | OriginLab | Spreadsheet Files | Origin Workbook File | OriginLan Origin Viewer | OriginLab |
.OOS | Apache Software Foundation | Spreadsheet Files | Apache OpenOffice (OpenOffice.org) Spreadsheet | Apache OpenOffice Calc | Apache Software Foundation |
.OTS | Apache Software Foundation | Spreadsheet Files | OpenDocument Spreadsheet Template | Apache OpenOffice | Apache Software Foundation |
.PMD | Adobe Systems Incorporated | Spreadsheet Files | PageMaker Document | Adobe InDesign | Adobe Systems Incorporated |
.PMV | SoftMaker Software | Spreadsheet Files | PlanMaker Spreadsheet Template | Softmaker Office | SoftMaker Software |
.QPW | Corel Corporation | Spreadsheet Files | Corel Quattro Pro Spreadsheet | Corel WordPerfect X8 | Corel |
.QUICKEN | Intuit, Inc. | Spreadsheet Files | QUICKEN For Mac Financial Data | Intuit Quicken | Quicken |
.RDF | Unknown Developer | Spreadsheet Files | Resource Description Framework File | Mozilla Firefox | Mozilla |
.SDC | Stardock Corporation | Spreadsheet Files | Stardock Central Download Archive | Stardock Central | Stardock Corporation |
.SHT | The Document Foundation | Spreadsheet Files | HTML File With Server Side Includes | LibreOffice | The Document Foundation |
.SILK | Microsoft Corporation | Spreadsheet Files | Microsoft Excel Symbolic Link Format | Microsoft Excel | Microsoft Corporation |
.SMX | MakeMusic, Inc. | Spreadsheet Files | SmartMusic XML File | SmartMusic | MakeMusic, Inc. |
.SPW | Quantitative Software Management, Inc. | Spreadsheet Files | SLIM-Master Plan Workbook File | SLIM Suite | Quantitative Software Management, Inc. |
.STC | Adobe Systems Incorporated | Spreadsheet Files | Contribute Connection Key File | Adobe Contribute 6.5 | Adobe Systems Incorporated |
.SXC | Sun Microsystems | Spreadsheet Files | StarOffice Calc Spreadsheet | NeoOffice | Planamesa Software Inc. |
.SXLS | Oracle Corporation | Spreadsheet Files | Sealed Excel Spreadsheet | Oracle IRM Desktop | Oracle Corporation |
.TC6 | Software602 | Spreadsheet Files | Calc602 Spreadsheet File | Calc602 | Software602 |
.TMV | SoftMaker Software | Spreadsheet Files | TextMaker Template | Softmaker Office | SoftMaker Software |
.VC | Software Arts | Spreadsheet Files | VisiCalc Spreadsheet | VisiCalc | Software Arts |
.VCX | H+H Software GmbH | Spreadsheet Files | Virtual Disc Definition File | H+H Software Virtual CD | H+H Software GmbH |
.WB2 | Threefold Photos, Inc. | Spreadsheet Files | Webshots Picture File | Webshots Desktop Connect | Threefold Photos, Inc. |
.WG1 | IBM | Spreadsheet Files | Lotus 1-2-3 Worksheet File | Lotus 1-2-3 | IBM |
.WJ3 | IBM | Spreadsheet Files | Lotus 1-2-3 Worksheet File | Lotus 1-2-3 | IBM |
.WK! | IBM | Spreadsheet Files | Lotus 1-2-3 Spreadsheet | Apache OpenOffice | Apache Software Foundation |
.WKE | IBM | Spreadsheet Files | Lotus 1-2-3 Educational Version Worksheet | Microsoft Excel | Microsoft Corporation |
.WKQ | Corel | Spreadsheet Files | Quattro Pro For DOS Spreadsheet File | Corel Quattro Pro | Corel |
.WKZ | Informix Corporation | Spreadsheet Files | Wingz Spreadsheet | Wingz | Informix Corporation |
.WLS | Renault | Spreadsheet Files | R-Link Update File | R-Link Toolbox | Renault |
.WQ! | Corel | Spreadsheet Files | Corel Quattro Pro Compressed Spreadsheet | Corel Quattro Pro | Corel |
.WQ0 | Corel | Spreadsheet Files | Quattro Pro For DOS Spreadsheet File | Corel Quattro Pro | Corel |
.WQ1 | Corel | Spreadsheet Files | Quattro Pro For DOS Spreadsheet File | Corel Quattro Pro | Corel |
.WQ2 | Corel | Spreadsheet Files | Quattro Pro For DOS Spreadsheet File | Corel Quattro Pro | Corel |
.WR! | IBM | Spreadsheet Files | Lotus 1-2-3 Spreadsheet | Apache OpenOffice | Apache Software Foundation |
.WR1 | IBM | Spreadsheet Files | Lotus Symphony Spreadsheet | IBM Lotus Symphony | IBM |
.WS | MicroPro International Corp. | Spreadsheet Files | WordStar Document | Corel WordPerfect X8 | Corel |
.XAR | Magix Software GmbH | Spreadsheet Files | Xara Xtreme Drawing | Xara Designer Pro X | Magix Software GmbH |
.XCEL | Microsoft Corporation | Spreadsheet Files | Microsoft Excel For Mac Spreadsheet | Microsoft Excel | Microsoft Corporation |
.XL | Microsoft Corporation | Spreadsheet Files | Excel Spreadsheet | Microsoft Excel | Microsoft Corporation |
.XLR | Microsoft Corporation | Spreadsheet Files | Microsoft Works Spreadsheet | Microsoft Excel | Microsoft Corporation |
.XLS | Microsoft Corporation | Spreadsheet Files | Microsoft Excel 97 To 2003 Spreadsheet | Microsoft Excel | Microsoft Corporation |
.XLSB | Microsoft Corporation | Spreadsheet Files | Excel Binary Spreadsheet | Microsoft Excel | Microsoft Corporation |
.XLSHTML | Microsoft Corporation | Spreadsheet Files | Microsoft Excel HTML Spreadsheet | Microsoft Excel | Microsoft Corporation |
.XLSM | Microsoft Corporation | Spreadsheet Files | Microsoft Excel Open XML Macro-Enabled Spreadsheet | Microsoft Excel | Microsoft Corporation |
.XLSMHTML | Microsoft Corporation | Spreadsheet Files | Microsoft Excel MIME HTML Spreadsheet | Microsoft Excel | Microsoft Corporation |
.XLSX | Microsoft Corporation | Spreadsheet Files | Microsoft Excel Open XML Spreadsheet | Microsoft Excel | Microsoft Corporation |
.XLTHTML | Microsoft Corporation | Spreadsheet Files | Microsoft Excel HTML Spreadsheet Template | Microsoft Excel | Microsoft Corporation |
.XLTM | Microsoft Corporation | Spreadsheet Files | Excel Open XML Macro-Enabled Spreadsheet Template | Microsoft Excel | Microsoft Corporation |
.XLTX | Microsoft Corporation | Spreadsheet Files | Excel Open XML Spreadsheet Template | Microsoft Excel | Microsoft Corporation |
.XLV | Microsoft Corporation | Spreadsheet Files | Excel Visual Basic Module File | Microsoft Excel | Microsoft Corporation |
.XS3 | Open Source | Spreadsheet Files | XESS Worksheet | Xess | Open Source |
.XS4 | Open Source | Spreadsheet Files | XESS Worksheet | Xess | Open Source |
.XS5 | Open Source | Spreadsheet Files | XESS Worksheet | Xess | Open Source |
.XSS | Oracle Corporation | Spreadsheet Files | XML Style Sheet | Microsoft Visual Studio | Microsoft Corporation |