| Extension | Description | Views |
| 10 | IBM Voice Type Script File | 46339 |
| abs | Absolute Database File | 76513 |
| accdb | Access Database File | 61992 |
| adb | Alpha Five Database Information File | 28121 |
| bfs | Tivoli Storage Manager File | 29291 |
| blg | Binary Performance Log File | 25092 |
| btn | Buttonware File | 32449 |
| cat | Advanced Disk Catalog File | 28250 |
| cdb | Symbian OS Contacts Database File | 32677 |
| cdd | ConceptDraw Document File | 71396 |
| cdw | CadKey Organized Dialogue File | 100283 |
| cfp | Quicken Cash Flow Projection File | 27608 |
| cgd | Cricket Graph Data File | 27626 |
| cli | Client Management System Customer File | 26256 |
| csv | Comma Seperated Values | 90688 |
| ctt | Messenger contacts file | 23794 |
| d10 | Drake Software Data File | 5856 |
| dat | DAT | 393042 |
| dat | Inno Setup Uninstall Log | 38116 |
| data | CoreFSIF database | 78269 |
| db | Database File | 431691 |
| db3 | dBase III Database File | 44841 |
| dbc | Visual FoxPro Databse File | 33318 |
| dbf | Database File | 129998 |
| ddm | Alpha Five Table Objects File | 25145 |
| dgdat | DoubleGIS Database File | 28609 |
| dropbox | Dropbox File | 69174 |
| dsn | ODBC Data Source File | 46370 |
| dta | Stata Dataset File | 38286 |
| edb | Exchange Information Store Database File | 43567 |
| esp | ACD/Labs Data File | 45453 |
| et | Easitech Lesson Data File | 41898 |
| etl | Microsoft Event Trace Log File | 119452 |
| ex4 | Expert Advisor File | 63872 |
| exp | Export File | 43039 |
| fcd | First Choice Database File | 15548 |
| fdb | Dynamics NAV Database File | 57830 |
| fid | Bruker Aspect NMR Data File | 14574 |
| fil | Files List File | 73827 |
| fo | XSL-FO Form File | 24825 |
| fp3 | FileMaker Pro 3 Database File | 19877 |
| frm | MySQL Database Format File | 45691 |
| gab | Global Address Book File | 21541 |
| gdb | Borland Interbase Database Files | 52287 |
| gp3 | Guitar Pro 3 Tablature File | 40530 |
| groups | WebMoney Group File | 22185 |
| ics | iCalendar Calendar File | 116640 |
| id2 | Windows Live Messenger Emoticon File | 24545 |
| idcl | Inventor Desktop Content File | 33686 |
| iff | Interchange File Format File | 30955 |
| iif | Quickbooks Interchange File | 20400 |
| ins | Inspiration File | 51246 |
| irx | Brewer Irradiation File | 40278 |
| itdb | iTunes Database File | 32596 |
| itl | Music Library File | 31220 |
| itx | ITX Form Template | 17721 |
| jgw | JPG World file | 28170 |
| joined | HJSplit Data File | 25814 |
| kdf | VisiQuest Data File | 26493 |
| kwi | Navigation Data File | 45688 |
| laccdb | Microsoft Access Lock File | 61965 |
| lbl | dBase Label File | 35607 |
| ldf | Server Transaction Log File | 36465 |
| ldif | LDAP Data Interchange Format File | 29933 |
| lib | AS/400 Library File | 50365 |
| lock | Net Framework Lock File | 59458 |
| mar | Microsoft Access Report File | 15179 |
| mat | Microsoft Access Shortcut File | 16354 |
| mat | MATLAB Binary File | 17157 |
| mbb | ManaBook File | 22869 |
| md | Chaos Desktop Metadata File | 75308 |
| mdb | Microsoft Access Database File | 106106 |
| mde | Microsoft Access Compiled Database File | 39916 |
| mdl | Rose Model File | 50266 |
| mdx | Database Index File | 135836 |
| menc | Windows Mobile Encrypted File | 53946 |
| met | eMule Information File | 42126 |
| mir | Bauhaus Mirage Data File | 32031 |
| mls | Milestones Simplicity Project File | 22073 |
| mny | Microsoft Money Data File | 24626 |
| mobi | Mobipocket E-Book File | 194175 |
| mpd | Microsoft Project Database File | 14932 |
| mpl | Playlist Data File | 60363 |
| mpls | Mathcad Font File | 11339 |
| mpp | Microsoft Project File | 81888 |
| mta | AllShare Metadate File | 34908 |
| net | netViz Project File | 46222 |
| nfs | Network File System Temporary File | 25401 |
| nm | Number Magic File | 22537 |
| ntw | Lode Data Network File | 35211 |
| odp | OpenOffice Presentation File | 91274 |
| ods | OpenOffice Spreadsheet File | 195192 |
| ofc | Open Financial Connectivity File | 26387 |
| ofx | Open Financial Exchange File | 42282 |
| one | OneNote Document File | 53880 |
| opd | Optical Path Difference File | 26471 |
| org | Lotus Organizer File | 37609 |
| ost | Outlook Offline File | 31958 |
| out | Output File | 44471 |
| ovl | Rollercoaster Tycoon Data File | 27424 |
| p | Database Procedure File | 33081 |
| p2p | FolderShare File | 24047 |
| pck | Received Package File | 45884 |
| pdb | PowerDesigner physical model | 74223 |
| pf | Windows Prefetch File | 80488 |
| pfl | Family Lawyer Data File | 23277 |
| pj2 | Projector File | 19444 |
| pkt | Packet Tracer Network Simulation File | 45150 |
| poi | Magellan Maestro POI File | 25096 |
| pps | Powerpoint Slideshow File | 171859 |
| ppsx | Microsoft Office PowerPoint Slide Show File | 70682 |
| ppt | Powerpoint Slideshow File | 326492 |
| pptx | Powerpoint Presentation File | 363515 |
| pst | Outlook Personal Information File | 86819 |
| ptb | Power Tab Editor File | 33538 |
| ptt | MapPoint Template File | 25881 |
| qfx | Quicken Financial Exchange File | 29977 |
| qif | Quicken Import File | 41779 |
| qrp | QuickReport Report Files | 59707 |
| rdata | R Data File | 26463 |
| rdb | Redis Database File | 26215 |
| rpt | Report File | 70377 |
| rsd | RealSQLDatabase File | 46467 |
| sal | SORITEC Data File | 40140 |
| sbf | SmartBroker Pro Data File | 33037 |
| sfv | Simple File Verification | 192635 |
| shs | Shell Scrap File | 308926 |
| snp | Microsoft Acess Report Snapshot File | 35318 |
| spo | SPSS Data Output File | 28835 |
| sps | IBM SPSS File | 24814 |
| sql | Structured Query Language Data File | 63095 |
| sqlite | SQLite Database File | 66173 |
| stp | STEP File | 28332 |
| str | dBASE Structure List Object File | 40184 |
| ta0 | TaxAct File | 18921 |
| tar | Compressed Tape Archive File | 48523 |
| tbk | FoxPro Memo Field Backup File | 10812 |
| tdt | Thor Datatree File | 44309 |
| tec | Tecplot Analysis File | 149686 |
| tps | Clarion TopSpeed Data File | 10083 |
| tps | Multi Channel Measurement File | 5187 |
| tvr | Navicat for MySQL File | 30187 |
| tw | TW File | 32127 |
| uccapilog | UCC API Log File | 52343 |
| v2 | Microsoft Live Messenger Data file | 24801 |
| vce | Visual CE Class Type File | 31517 |
| vcf | vCard File | 73671 |
| w02 | Multiple Archive File | 41612 |
| wft | Nicolet WFT Export File | 23056 |
| wlmp | Live Movie Maker Project File | 142601 |
| wmdb | Windows Media Database File | 28331 |
| woc | Widows Orgchart Organization Chart File | 13473 |
| woc | Microsoft Office 2007 Organization File | 13317 |
| wtc | Watertec Database | 28174 |
| xlsx | Microsoft Excel XML File | 566668 |
| xml | Extensible Markup Language | 79745 |
| xtm | Xtremsplit Data File | 32931 |
| zix | Quicken Data File | 14019 |