| Extension | Description | Views |
| 10 | IBM Voice Type Script File | 46186 |
| abs | Absolute Database File | 76364 |
| accdb | Access Database File | 61827 |
| adb | Alpha Five Database Information File | 27967 |
| bfs | Tivoli Storage Manager File | 29137 |
| blg | Binary Performance Log File | 24956 |
| btn | Buttonware File | 32325 |
| cat | Advanced Disk Catalog File | 28102 |
| cdb | Symbian OS Contacts Database File | 32532 |
| cdd | ConceptDraw Document File | 71246 |
| cdw | CadKey Organized Dialogue File | 100100 |
| cfp | Quicken Cash Flow Projection File | 27461 |
| cgd | Cricket Graph Data File | 27474 |
| cli | Client Management System Customer File | 26118 |
| csv | Comma Seperated Values | 90485 |
| ctt | Messenger contacts file | 23652 |
| d10 | Drake Software Data File | 5836 |
| dat | DAT | 392881 |
| dat | Inno Setup Uninstall Log | 38009 |
| data | CoreFSIF database | 78111 |
| db | Database File | 431458 |
| db3 | dBase III Database File | 44691 |
| dbc | Visual FoxPro Databse File | 33180 |
| dbf | Database File | 129836 |
| ddm | Alpha Five Table Objects File | 24997 |
| dgdat | DoubleGIS Database File | 28477 |
| dropbox | Dropbox File | 69016 |
| dsn | ODBC Data Source File | 46217 |
| dta | Stata Dataset File | 38136 |
| edb | Exchange Information Store Database File | 43401 |
| esp | ACD/Labs Data File | 45305 |
| et | Easitech Lesson Data File | 41743 |
| etl | Microsoft Event Trace Log File | 119275 |
| ex4 | Expert Advisor File | 63719 |
| exp | Export File | 42887 |
| fcd | First Choice Database File | 15434 |
| fdb | Dynamics NAV Database File | 57679 |
| fid | Bruker Aspect NMR Data File | 14489 |
| fil | Files List File | 73677 |
| fo | XSL-FO Form File | 24664 |
| fp3 | FileMaker Pro 3 Database File | 19775 |
| frm | MySQL Database Format File | 45549 |
| gab | Global Address Book File | 21378 |
| gdb | Borland Interbase Database Files | 52129 |
| gp3 | Guitar Pro 3 Tablature File | 40367 |
| groups | WebMoney Group File | 22049 |
| ics | iCalendar Calendar File | 116469 |
| id2 | Windows Live Messenger Emoticon File | 24405 |
| idcl | Inventor Desktop Content File | 33527 |
| iff | Interchange File Format File | 30780 |
| iif | Quickbooks Interchange File | 20241 |
| ins | Inspiration File | 51081 |
| irx | Brewer Irradiation File | 40136 |
| itdb | iTunes Database File | 32439 |
| itl | Music Library File | 31057 |
| itx | ITX Form Template | 17571 |
| jgw | JPG World file | 28025 |
| joined | HJSplit Data File | 25675 |
| kdf | VisiQuest Data File | 26357 |
| kwi | Navigation Data File | 45536 |
| laccdb | Microsoft Access Lock File | 61797 |
| lbl | dBase Label File | 35466 |
| ldf | Server Transaction Log File | 36317 |
| ldif | LDAP Data Interchange Format File | 29787 |
| lib | AS/400 Library File | 50218 |
| lock | Net Framework Lock File | 59303 |
| mar | Microsoft Access Report File | 15042 |
| mat | Microsoft Access Shortcut File | 16224 |
| mat | MATLAB Binary File | 17060 |
| mbb | ManaBook File | 22727 |
| md | Chaos Desktop Metadata File | 75130 |
| mdb | Microsoft Access Database File | 105936 |
| mde | Microsoft Access Compiled Database File | 39764 |
| mdl | Rose Model File | 50115 |
| mdx | Database Index File | 135679 |
| menc | Windows Mobile Encrypted File | 53794 |
| met | eMule Information File | 41967 |
| mir | Bauhaus Mirage Data File | 31872 |
| mls | Milestones Simplicity Project File | 21922 |
| mny | Microsoft Money Data File | 24454 |
| mobi | Mobipocket E-Book File | 194000 |
| mpd | Microsoft Project Database File | 14889 |
| mpl | Playlist Data File | 60225 |
| mpls | Mathcad Font File | 11254 |
| mpp | Microsoft Project File | 81735 |
| mta | AllShare Metadate File | 34774 |
| net | netViz Project File | 46064 |
| nfs | Network File System Temporary File | 25239 |
| nm | Number Magic File | 22398 |
| ntw | Lode Data Network File | 35043 |
| odp | OpenOffice Presentation File | 91095 |
| ods | OpenOffice Spreadsheet File | 195005 |
| ofc | Open Financial Connectivity File | 26243 |
| ofx | Open Financial Exchange File | 42131 |
| one | OneNote Document File | 53717 |
| opd | Optical Path Difference File | 26323 |
| org | Lotus Organizer File | 37438 |
| ost | Outlook Offline File | 31797 |
| out | Output File | 44317 |
| ovl | Rollercoaster Tycoon Data File | 27270 |
| p | Database Procedure File | 32938 |
| p2p | FolderShare File | 23911 |
| pck | Received Package File | 45719 |
| pdb | PowerDesigner physical model | 74055 |
| pf | Windows Prefetch File | 80333 |
| pfl | Family Lawyer Data File | 23127 |
| pj2 | Projector File | 19315 |
| pkt | Packet Tracer Network Simulation File | 44983 |
| poi | Magellan Maestro POI File | 24954 |
| pps | Powerpoint Slideshow File | 171694 |
| ppsx | Microsoft Office PowerPoint Slide Show File | 70529 |
| ppt | Powerpoint Slideshow File | 326290 |
| pptx | Powerpoint Presentation File | 363249 |
| pst | Outlook Personal Information File | 86661 |
| ptb | Power Tab Editor File | 33373 |
| ptt | MapPoint Template File | 25735 |
| qfx | Quicken Financial Exchange File | 29826 |
| qif | Quicken Import File | 41626 |
| qrp | QuickReport Report Files | 59556 |
| rdata | R Data File | 26318 |
| rdb | Redis Database File | 26067 |
| rpt | Report File | 70207 |
| rsd | RealSQLDatabase File | 46315 |
| sal | SORITEC Data File | 39996 |
| sbf | SmartBroker Pro Data File | 32900 |
| sfv | Simple File Verification | 192466 |
| shs | Shell Scrap File | 308760 |
| snp | Microsoft Acess Report Snapshot File | 35184 |
| spo | SPSS Data Output File | 28667 |
| sps | IBM SPSS File | 24659 |
| sql | Structured Query Language Data File | 62939 |
| sqlite | SQLite Database File | 65988 |
| stp | STEP File | 28228 |
| str | dBASE Structure List Object File | 40026 |
| ta0 | TaxAct File | 18761 |
| tar | Compressed Tape Archive File | 48354 |
| tbk | FoxPro Memo Field Backup File | 10777 |
| tdt | Thor Datatree File | 44159 |
| tec | Tecplot Analysis File | 149505 |
| tps | Clarion TopSpeed Data File | 10057 |
| tps | Multi Channel Measurement File | 5160 |
| tvr | Navicat for MySQL File | 30046 |
| tw | TW File | 31961 |
| uccapilog | UCC API Log File | 52186 |
| v2 | Microsoft Live Messenger Data file | 24651 |
| vce | Visual CE Class Type File | 31374 |
| vcf | vCard File | 73506 |
| w02 | Multiple Archive File | 41457 |
| wft | Nicolet WFT Export File | 22898 |
| wlmp | Live Movie Maker Project File | 142440 |
| wmdb | Windows Media Database File | 28199 |
| woc | Widows Orgchart Organization Chart File | 13337 |
| woc | Microsoft Office 2007 Organization File | 13223 |
| wtc | Watertec Database | 28012 |
| xlsx | Microsoft Excel XML File | 566348 |
| xml | Extensible Markup Language | 79556 |
| xtm | Xtremsplit Data File | 32786 |
| zix | Quicken Data File | 13883 |