.POD | Terminal Reality | Game Files | Terminal Reality Game Data File | Microsoft Notepad | Microsoft Corporation |
.POT | Microsoft Corporation | Data Files | PowerPoint Template | Microsoft Notepad | Microsoft Corporation |
.PP | Geckonization | Data Files | Pocket Physics Sketch File | Microsoft Notepad | Microsoft Corporation |
.PROPERTIES | Mojang | Game Files | Minecraft Properties File | Microsoft Notepad | Microsoft Corporation |
.PSP | Corel Corporation | Raster Image Files | PaintShop Pro Image | Microsoft Notepad | Microsoft Corporation |
.PY | Python Software Foundation | Developer Files | Python Script | Microsoft Notepad | Microsoft Corporation |
.PY2 | Python Software Foundation | Developer Files | Python Script | Microsoft Notepad | Microsoft Corporation |
.PYM | VRVis (Vienna University of Technology) | Developer Files | PYM Macro Preprocessor File | Microsoft Notepad | Microsoft Corporation |
.QC | Valve | 3D Image Files | Half-Life Model Compiler Script File | Microsoft Notepad | Microsoft Corporation |
.QF | Nokia | Settings Files | Nokia (Ovi) Maps Version Data | Microsoft Notepad | Microsoft Corporation |
.QSS | Digia Oyj | Settings Files | Qt Style Sheet | Microsoft Notepad | Microsoft Corporation |
.RAT | World Wide Web Consortium (W3C) | Uncommon Files | PICS Rating File | Microsoft Notepad | Microsoft Corporation |
.RCJ | Microsoft Corporation | Text Files | Robocopy Job File | Microsoft Notepad | Microsoft Corporation |
.RDF | Unknown Developer | Settings Files | Resource Description Framework File | Microsoft Notepad | Microsoft Corporation |
.REA | Microsoft Corporation | Text Files | Readme Text File | Microsoft Notepad | Microsoft Corporation |
.README | The Document Foundation | Text Files | Readme Text Document File | Microsoft Notepad | Microsoft Corporation |
.REFERENCE | Budget In Brief | Data Files | Budget In Brief Reference File | Microsoft Notepad | Microsoft Corporation |
.REPORT | Sublime HQ Pty Ltd | Data Files | Report File | Microsoft Notepad | Microsoft Corporation |
.REQ | Open Source | Uncommon Files | SSL Certificate Request File | Microsoft Notepad | Microsoft Corporation |
.RPT | SAP | Data Files | Crystal Reports File | Microsoft Notepad | Microsoft Corporation |
.RPY | Team Shanghai Alice | Game Files | Touhou Project Replay File | Microsoft Notepad | Microsoft Corporation |
.RST | David Goodger | Text Files | ReStructuredText File | Microsoft Notepad | Microsoft Corporation |
.RTL | Hewlett-Packard | Raster Image Files | Raster Transfer Language File | Microsoft Notepad | Microsoft Corporation |
.RU | Microsoft Corporation | Text Files | Russian Text Or Localization File | Microsoft Notepad | Microsoft Corporation |
.S | Unknown Developer | Developer Files | Source Code File | Microsoft Notepad | Microsoft Corporation |
.SBV | Superbase Software | Page Layout Files | Superbase Form Definition File | Microsoft Notepad | Microsoft Corporation |
.SCA | Symantec Corporation | Data Files | Norton AntiVirus Scan File | Microsoft Notepad | Microsoft Corporation |
.SCR | Microsoft Corporation | System Files | Windows Screensaver File | Microsoft Notepad | Microsoft Corporation |
.SCRIPT | Unknown Developer | Executable Files | Generic Script File | Microsoft Notepad | Microsoft Corporation |
.SCT | Scitex | Raster Image Files | Scitex Continuous Tone File | Microsoft Notepad | Microsoft Corporation |
.SE | Unknown Developer | Text Files | Shuttle Document | Microsoft Notepad | Microsoft Corporation |
.SFB | Sony | Game Files | PlayStation 3 Disc Data File | Microsoft Notepad | Microsoft Corporation |
.SHT | The Document Foundation | Web Files | HTML File With Server Side Includes | Microsoft Notepad | Microsoft Corporation |
.SHTM | Opera Software | Video Files | HTML Server Side Include File | Microsoft Notepad | Microsoft Corporation |
.SHTML | Sublime HQ Pty Ltd | Web Files | Server Side Include HTML File | Microsoft Notepad | Microsoft Corporation |
.SIF | Microsoft Corporation | Settings Files | Windows Setup Information File | Microsoft Notepad | Microsoft Corporation |
.SKI | Motorola | Settings Files | Motorola Phone Skin File | Microsoft Notepad | Microsoft Corporation |
.SMD | Valve | 3D Image Files | Valve Studiomdl Data File | Microsoft Notepad | Microsoft Corporation |
.SMS | Sega | Game Files | Sega Master System ROM | Microsoft Notepad | Microsoft Corporation |
.SOUNDS | id Software | Game Files | Quake 3 Engine Sound Definition File | Microsoft Notepad | Microsoft Corporation |
.SPS | IBM | Data Files | SPSS Program File | Microsoft Notepad | Microsoft Corporation |
.SQL | Various Developers | Database Files | Structured Query Language Data File | Microsoft Notepad | Microsoft Corporation |
.SRC | Unknown Developer | Developer Files | Source Code File | Microsoft Notepad | Microsoft Corporation |
.SRX | Sublime HQ Pty Ltd | Data Files | SPARQL Query Results XML Format Result | Microsoft Notepad | Microsoft Corporation |
.SS | Open Source | Developer Files | SilverStripe Source Code File | Microsoft Notepad | Microsoft Corporation |
.SSC | Microsoft Corporation | Developer Files | SourceSafe Status File | Microsoft Notepad | Microsoft Corporation |
.SSF | Unknown Developer | Video Files | Structured Subtitle Format File | Microsoft Notepad | Microsoft Corporation |
.STC | Adobe Systems Incorporated | Web Files | Contribute Connection Key File | Microsoft Notepad | Microsoft Corporation |
.STE | Adobe Systems Incorporated | Settings Files | Dreamweaver Site Settings File | Microsoft Notepad | Microsoft Corporation |
.SVH | IEEE Xplore | Developer Files | SystemVerilog Source Code Header File | Microsoft Notepad | Microsoft Corporation |
.SVX | The Survex Project | GIS Files | Survex Cavern Data File | Microsoft Notepad | Microsoft Corporation |
.SYSTEM | Open Source | Game Files | Vega Strike Virtual System File | Microsoft Notepad | Microsoft Corporation |
.T | Holt Software | Developer Files | Turing Source Code File | Microsoft Notepad | Microsoft Corporation |
.TAB | Microsoft Corporation | Text Files | Tab Separated Data File | Microsoft Notepad | Microsoft Corporation |
.TCM | IMSI/Design, LLC | CAD Files | TurboCAD Mac Drawing | Microsoft Notepad | Microsoft Corporation |
.TEXT | Sublime HQ Pty Ltd | Text Files | Plain Text File | Microsoft Notepad | Microsoft Corporation |
.TGD | Planetside Software | Data Files | Terragen Project File | Microsoft Notepad | Microsoft Corporation |
.TGML | Unknown Developer | Developer Files | Tecumseh Group Markup Language Source Code | Microsoft Notepad | Microsoft Corporation |
.TOPC | 3d-scape Limited | Data Files | TopicCrunch Project File | Microsoft Notepad | Microsoft Corporation |
.TRI | Singular Inversions | 3D Image Files | FaceGen Polygonal Model File | Microsoft Notepad | Microsoft Corporation |
.TSV | Unknown Developer | Data Files | Tab Separated Values File | Microsoft Notepad | Microsoft Corporation |
.TUR | Holt Software | Developer Files | Turing Program Source File | Microsoft Notepad | Microsoft Corporation |
.TXE | Open Source | Text Files | Enriched Text File | Microsoft Notepad | Microsoft Corporation |
.TXT | Sublime HQ Pty Ltd | Text Files | Plain Text File | Microsoft Notepad | Microsoft Corporation |
.UMF | GetMediaHolder.com | Data Files | MediaHolder Universal Media Format File | Microsoft Notepad | Microsoft Corporation |
.UPD | Various Developers | Text Files | Program Update Information | Microsoft Notepad | Microsoft Corporation |
.URI | Microsoft Corporation | Data Files | List Of Uniform Resource Identifiers | Microsoft Notepad | Microsoft Corporation |
.URL | Microsoft Corporation | Web Files | Internet Shortcut | Microsoft Notepad | Microsoft Corporation |
.USA | Microsoft Corporation | Data Files | American English Localization Language File | Microsoft Notepad | Microsoft Corporation |
.USE | Unknown Developer | Text Files | Log File | Microsoft Notepad | Microsoft Corporation |
.USER | Microsoft Corporation | Settings Files | Visual Studio Project User Options File | Microsoft Notepad | Microsoft Corporation |
.USF | EVGA Corporation | Settings Files | EVGA Precision X Skin File | Microsoft Notepad | Microsoft Corporation |
.USR | FileMaker Inc. | Database Files | FileMaker Pro Database File | Microsoft Notepad | Microsoft Corporation |
.UTXT | Open Source | Text Files | Unicode Text File | Microsoft Notepad | Microsoft Corporation |
.VB | Microsoft Corporation | Developer Files | Visual Basic Project Item File | Microsoft Notepad | Microsoft Corporation |
.VBS | Microsoft Corporation | Executable Files | VBScript File | Microsoft Notepad | Microsoft Corporation |
.VDF | Valve | Game Files | Valve Data File | Microsoft Notepad | Microsoft Corporation |
.VEC | Omron Corporation | Vector Image Files | CX-Designer Shape File | Microsoft Notepad | Microsoft Corporation |
.VHD | Microsoft Corporation | Developer Files | VHDL Source File | Microsoft Notepad | Microsoft Corporation |
.VHDL | Microsoft Corporation | Developer Files | VHDL Source File | Microsoft Notepad | Microsoft Corporation |
.VNT | Sony | Text Files | Sony Ericsson Mobile Phone vNote File | Microsoft Notepad | Microsoft Corporation |
.VXML | Voxeo Corporation | Data Files | VoiceXML File | Microsoft Notepad | Microsoft Corporation |
.WBF | Microsoft Corporation | Developer Files | Microsoft Windows Batch File | Microsoft Notepad | Microsoft Corporation |
.WCF | Microsoft Corporation | Data Files | WebEx Saved Chat Session | Microsoft Notepad | Microsoft Corporation |
.WEAP | id Software | Game Files | Quake 3 Engine Weapon File | Microsoft Notepad | Microsoft Corporation |
.WEBLOC | Apple | Web Files | Mac OS X Website Location | Microsoft Notepad | Microsoft Corporation |
.WER | Microsoft Corporation | Uncommon Files | Windows Error Report File | Microsoft Notepad | Microsoft Corporation |
.WN | WN | Web Files | WN Web File | Microsoft Notepad | Microsoft Corporation |
.WS | MicroPro International Corp. | Text Files | WordStar Document | Microsoft Notepad | Microsoft Corporation |
.WSC | Open Source | Game Files | WonderSwan Color Game ROM | Microsoft Notepad | Microsoft Corporation |
.WSH | Microsoft Corporation | Executable Files | Windows Script Host Settings File | Microsoft Notepad | Microsoft Corporation |
.WTX | Stefan Hagel | Text Files | Text Document | Microsoft Notepad | Microsoft Corporation |
.XAML | Microsoft Corporation | Developer Files | Extensible Application Markup Language | Microsoft Notepad | Microsoft Corporation |
.XDR | Microsoft Corporation | Settings Files | XML-Data Reduced File | Microsoft Notepad | Microsoft Corporation |
.XFDL | IBM | Web Files | Extensible Forms Description Language | Microsoft Notepad | Microsoft Corporation |
.XMP | Adobe Systems Incorporated | Uncommon Files | Extensible Metadata Platform File | Microsoft Notepad | Microsoft Corporation |
.XQL | Open Source | Developer Files | XML Query Language File | Microsoft Notepad | Microsoft Corporation |
.XSL | Syncro Soft | Data Files | XML eXtensible Stylesheet | Microsoft Notepad | Microsoft Corporation |
.XSLT | Syncro Soft | Data Files | XSL Transformation File | Microsoft Notepad | Microsoft Corporation |
.Y | Microsoft Corporation | Raster Image Files | Subsampled Raw YUV Image | Microsoft Notepad | Microsoft Corporation |