| pvf | PCStitch Pro Design Document |
| pvg | Pazzles InVue Document |
| pvgc | Pazzles InVue Compressed Document |
| pvm | HP Photo Album |
| pvn | Design and Print Document |
| pvu | RealVue 3D Packager Document |
| pw | Pathetic Writer Document |
| pwd | DynaCAD v4 Parts Document |
| pwd | Solid Edge Weldment Document |
| pwdp | Password Pad Document |
| pwdpl | Password Pad Lite Document |
| pwe | PriMus Exchange Document |
| pwi | Autodesk PowerInspect Document |
| pwr | PowerWrite Document |
| pwt | AutoCAD Publish To Web Template |
| pwt | HotDog PageWiz Template |
| pwt | Pocket Word Template |
| pxd | ProxyDesigner Design |
| pxl | Pocket Excel Document |
| pxt | RealLegal E-Transcript Data |
| pxw | ProShow Web Archive |
| pys | Pyspread Document |
| pzc | EditPad Document |
| pzd | DynaCAD Parts Document |
| pzd | Pocket Zone Drawing |
| pzh | Presto Data |
| pzs | PhotoSuite Slide Show |
| pzt | GraphPad Prism Template |
| q3o | Quick3D Object |
| q3s | Quick3D Scene |
| qad | PF QuickArt Document |
| qaf | Qedoc Autolaunch File |
| qb2005 | Intuit QuickBooks 2005 Document |
| qb2006 | Intuit QuickBooks 2006 Document |
| qb2007 | Intuit QuickBooks 2007 Document |
| qb2008 | Intuit QuickBooks 2008 Document |
| qb2009 | Intuit QuickBooks 2009 Document |
| qb2010 | Intuit QuickBooks 2010 Document |
| qb2011 | Intuit QuickBooks 2011 Document |
| qb2012 | Intuit QuickBooks 2012 Document |
| qb2013 | Intuit QuickBooks 2013 Document |
| qb2014 | Intuit QuickBooks 2014 Document |
| qb2015 | Intuit QuickBooks 2015 Document |
| qb2016 | Intuit QuickBooks 2016 Document |
| qb2017 | Intuit QuickBooks 2017 Document |
| qba | Intuit QuickBooks Accountant's File |
| qbb | Intuit QuickBooks Backup File |
| qbe | Corel Quattro Pro Saved Query |
| qbl | Broderbund Business Lawyer Document |
| qbm | Intuit QuickBooks Portable Company File |
| qbr | Intuit QuickBooks Report Template |
| qbw | Intuit QuickBooks Company File |
| qbx | Intuit QuickBooks Accountant's Export |
| qby | Intuit QuickBooks Accountant Import Data |
| qcd | QuarkXPress Article Data |
| qdf | Label Matrix Label Design |
| qdf | Quadro Design Document |
| qdf | Snapform Designer Document |
| qdft | Snapform Designer Template |
| qdl | Cue Description Language Document |
| qdt | QuarkXPress Dictionary Data |
| qfl | Quicken Family Lawyer Document |
| qfxx | QuickLink II Fax Document |
| qht | QuickTime HTML |
| qlt | QLeTTeX Letter Data |
| qpf | QuickPad Encrypted Document |
| qpm | Quick Pallet Maker Data |
| qpp | QPresenter Pro Presentation |
| qpt | QuarkXPress Project Template |
| qpw | Quattro Pro for Windows Spreadsheet |
| qst | Ami Pro Quickstart Tutorial Image |
| qtl | QuickTime Media Link |
| qtw | Qtext Text Document |
| qud | QuarkXPress Auxiliary Dictionary Data |
| quicken | Quicken Spreadsheet |
| quid | QuidProQuo Document |
| qvd | QlikView Data Only File |
| qvg | QPainter Vector Graphic Data |
| qvpp | QlikView Extension Properties Page |
| qvw | QlikView Document |
| qwd | QuarkXPress Web Document |
| qwt | QuarkXPress Web Document Template |
| qxb | QuarkXPress Book |
| qxd | QuarkXPress Document |
| qxl | QuarkXPress Library |
| qxt | QuarkXPress Document Template |
| r0f | RingCentral Fax Document |
| r0z | RingCentral Compressed Fax Document |
| r2d | RISA-2D Document |
| rad | Radiance Scene |
| rail | DeckTools Custom Rail Design |
| ran | Ransen Dexterpen Document |
| rap | Rapidocs Document |
| rb4 | Resume Builder 4 Document |
| rbc | Easy Resume Creator Pro Document |
| rcad | RealCADD Drawing |
| rcs | RandomControl Arion Scene |
| rd3 | Ray Dream 3D Scene |
| rd4f | Ray Dream 3D v4 Model |
| rdf | Resource Description Framework |
| rdf | SmartWare Report Definition File |
| rdfs | SemanticWorks Document |
| rdl | Report Definition Language File |
| rdlx | Power View Report Document |
| rdo | Xerox Raster Document Object |
| rds | Ray Dream Studio Scene |
| readme | Readme Document |
| red | CADViewer Redline Markup |
| rels | Microsoft Office 2007 Relationships Data |
| rep | SAP Business Objects Report |
| rest | Docutils reStructuredText Document |
| ret | SAP Business Objects Report Template |
| rft | Revisable-Form Text |
| rgo | RepliGo Document |
| rhif | LiveQuartz Document |
| rig | vRigger Design File |
| ris | Research Information Systems Citation |
| rlc | Graphtec Studio RLC Raster |
| rlp | RLPlot Document |
| rm5 | RevMan v5 Review |
| rmc | RootsMagic Chart |
| rmh | Rights-managed HTML Document |
| rml | Redline Markup Language Document |
| rmr | ResumeMaker Resume |
| rod | Actuate e.Report Report Object Design |
| roff | Unformatted Manual Page |
| rolf | RELUX Open Luminaire Format Document |
| row | Actuate e.Report HTML Report Document |
| rox | Actuate e.Report Report Object Executable |
| rp0 | RescuePro 3000 Invoice Document |
| rpd | RonyaSoft Poster Designer Document |
| rplt | RecurDyn Plot Document |
| rpmsg | Microsoft Restricted Permission Message |
| rptdocument | BiRT Report Document |
| rptr | RafflePrinter Document |
| rpttemplate | BiRT Report Template |
| rptx | Spiceworks Report Document |
| rqy | Microsoft Excel OLE DB Query |
| rrb | RoboRally Board Editor Board |
| rrf | Metathesaurus Rich Release Format Document |
| rs | RapidSketch Document |
| rs1 | RETScreen Spreadsheet Document |
| rsd | SpeedQuest Template |
| rsdoc | DesignSpark Mechanical Document |
| rsf | RapidSketch Settings Data |
| rsl | Corel Paradox Report |
| rsm | WinWay Resume Deluxe Resume Data |
| rsml | Requirements State Machine Language Document |
| rsml | RootSystemML Data |
| rsq | SpeedQuest Questionnaire |
| rss | RSS Feed File |
| rst | reStructuredText File |
| rtab | Randy Tab Guitar Tablature |
| rtb | CA Report Template Builder Document |
| rtd | RagTime Document |
| rte | Autodesk Revit Template |
| rtf | Rich Text Format Document |
| rtfd | TextEdit Document |
| rtg | Autodesk Maya 3D Scene Data |
| rtml | Runeberg Text Markup Language Document |
| rtt | RagTime Form |
| rt_ | Compressed RTF Document |
| rvd | VPHybridCAD Drawing |
| rvt | Autodesk Revit Document |
| rxf | Resort Chef Recipe Exchange Format Data |
| rxl | Seetrax XL Designer Document |
| s1e | Sealed Excel Worksheet |
| s3d | Shape 3D v8 Document |
| s3dx | Shape 3D X Document |
| s3g | MakerBot S3G Document |
| s6bn | Microsoft Word 6 for Mac Template |
| sadl | Semantic Application Design Language Document |
| saga | Gargoyle Saga Document |
| sagews | SageMath Sage Worksheet |
| sam | Ami Pro Document |
| sb1 | MemoryMixer Album |
| sbk | Scrapbook Factory Deluxe Scrapbook |
| sbml | Systems Biology Markup Language Document |
| sbp | Autodesk Sketchbook Express Image |
| sbpf | Small Business Publisher Document |
| sbsc | Adobe Soundbooth Score Document |
| sbst | Adobe Soundbooth Score Template |
| sc2 | Microsoft Schedule Plus Interchange |
| scc | StitchCraft Design |
| scd | Microsoft Schedule Plus Document |
| scd | Scribus Compressed Document |
| scdoc | SpaceClaim Document |
| sch | EAGLE Schematic File |
| sch | KiCad Schematic Document |
| sch | Microsoft Schedule Plus File |
| schdot | Altium Designer Schematic Template |
| scld | ScoreCleaner Song |
| scm | Topanga SchematicMaker Document |
| scn | Caligari TrueSpace Scene |
| scne | Infini-D Scene |
| scriv | Scrivener Document |
| scrivx | Scrivener XML Document |
| scsv | Sealed CSV Document |
| scv | ScanVec CASmate Sign |
| scw | Movie Magic Screenwriter Document |
| scw | Score Writer Document |
| scw | SLIM‐Control Workbook |
| scz | Wingz Script |
| sda | StarOffice Draw Template |
| sdb | OpenOffice Base Database |
| sdbn | Microsoft Word 4 for Mac Template |
| sdc | OpenOffice Calc Spreadsheet |
| sdd | StarOffice Presentation |
| sdf | Iconics GraphWorx32 Symbol Library |
| sdf | Sharpdesk Format Document |
| sdfa | Exocad 3D Model |
| sdk | Autodesk AutoSketch Drawing |
| sdl | Scene Description Language Document |
| sdm | StarOffice Mail Document |
| sdnf | Steel Detail Neutral File |
| sdoc | Sealed Word Document |
| sdocm | Sealed Word 2007 Document without Macros |
| sdocx | Sealed Word 2007 Document |
| sdot | Sealed Word Template |
| sdotm | Sealed Word 2007 Template without Macros |
| sdotx | Sealed Word 2007 Template |
| sdox | sharpDox Document |
| sdp | StarOffice Packed Presentation |
| sdr | SmartDraw Drawing |
| sdt | SmartDraw Template |
| sdw | Lotus Word Pro Drawing |
| sdw | StarOffice Writer Document |
| sdxml | SimpleDiagrams Diagram Document |
| secure | Septium Secure Document |
| seml | Sealed EML Document |
| sequ | Adobe Acrobat Batch Sequence |
| sew | SLIM‐Estimate Workbook |
| sfd | MagicScore Maestro Score |
| sfx | Shark FX Drawing |
| sg | Micrografx ABC SnapGraphics Document |
| sgi | Sealed GIF Image |
| sgl | StarWriter 5.x Global Document |
| sgml | Standard Generalized Markup Language Document |
| sgo | Silicon Graphics Object File |
| sh3 | Harvard Graphics 3.0 Show Presentation |
| sh3d | Sweet Home 3D Design |
| shg | Segmented Hypergraphic Document |
| show | Hancom Office Hanshow Presentation |
| show | Hanshow Presentation Document |
| shtm | HTML Document with SSI |
| shv | Husqvarna Viking SHV Embroidery |
| shw | Corel Presentations Document |
| sia | Silo 3D Model |
| siag | Siag Spreadsheet Document |
| sib | Sibelius Music Notation |