| Extension | Description | Views |
| 10 | IBM Voice Type Script File | 45325 |
| abs | Absolute Database File | 75544 |
| accdb | Access Database File | 60914 |
| adb | Alpha Five Database Information File | 27143 |
| bfs | Tivoli Storage Manager File | 28319 |
| blg | Binary Performance Log File | 24159 |
| btn | Buttonware File | 31582 |
| cat | Advanced Disk Catalog File | 27273 |
| cdb | Symbian OS Contacts Database File | 31706 |
| cdd | ConceptDraw Document File | 70433 |
| cdw | CadKey Organized Dialogue File | 99214 |
| cfp | Quicken Cash Flow Projection File | 26631 |
| cgd | Cricket Graph Data File | 26656 |
| cli | Client Management System Customer File | 25272 |
| csv | Comma Seperated Values | 89487 |
| ctt | Messenger contacts file | 22834 |
| d10 | Drake Software Data File | 5698 |
| dat | DAT | 391984 |
| dat | Inno Setup Uninstall Log | 37442 |
| data | CoreFSIF database | 77174 |
| db | Database File | 430124 |
| db3 | dBase III Database File | 43814 |
| dbc | Visual FoxPro Databse File | 32337 |
| dbf | Database File | 128899 |
| ddm | Alpha Five Table Objects File | 24154 |
| dgdat | DoubleGIS Database File | 27650 |
| dropbox | Dropbox File | 68144 |
| dsn | ODBC Data Source File | 45384 |
| dta | Stata Dataset File | 37143 |
| edb | Exchange Information Store Database File | 42521 |
| esp | ACD/Labs Data File | 44451 |
| et | Easitech Lesson Data File | 40923 |
| etl | Microsoft Event Trace Log File | 118320 |
| ex4 | Expert Advisor File | 62874 |
| exp | Export File | 41974 |
| fcd | First Choice Database File | 14795 |
| fdb | Dynamics NAV Database File | 56840 |
| fid | Bruker Aspect NMR Data File | 14025 |
| fil | Files List File | 72864 |
| fo | XSL-FO Form File | 23853 |
| fp3 | FileMaker Pro 3 Database File | 19278 |
| frm | MySQL Database Format File | 44722 |
| gab | Global Address Book File | 20555 |
| gdb | Borland Interbase Database Files | 51271 |
| gp3 | Guitar Pro 3 Tablature File | 39513 |
| groups | WebMoney Group File | 21214 |
| ics | iCalendar Calendar File | 115413 |
| id2 | Windows Live Messenger Emoticon File | 23603 |
| idcl | Inventor Desktop Content File | 32616 |
| iff | Interchange File Format File | 29876 |
| iif | Quickbooks Interchange File | 19448 |
| ins | Inspiration File | 50188 |
| irx | Brewer Irradiation File | 39361 |
| itdb | iTunes Database File | 31631 |
| itl | Music Library File | 30188 |
| itx | ITX Form Template | 16657 |
| jgw | JPG World file | 27234 |
| joined | HJSplit Data File | 24829 |
| kdf | VisiQuest Data File | 25575 |
| kwi | Navigation Data File | 44631 |
| laccdb | Microsoft Access Lock File | 60900 |
| lbl | dBase Label File | 34577 |
| ldf | Server Transaction Log File | 35476 |
| ldif | LDAP Data Interchange Format File | 28951 |
| lib | AS/400 Library File | 49292 |
| lock | Net Framework Lock File | 58431 |
| mar | Microsoft Access Report File | 14407 |
| mat | Microsoft Access Shortcut File | 15518 |
| mat | MATLAB Binary File | 16508 |
| mbb | ManaBook File | 21937 |
| md | Chaos Desktop Metadata File | 73980 |
| mdb | Microsoft Access Database File | 104963 |
| mde | Microsoft Access Compiled Database File | 38877 |
| mdl | Rose Model File | 49267 |
| mdx | Database Index File | 134780 |
| menc | Windows Mobile Encrypted File | 52862 |
| met | eMule Information File | 41139 |
| mir | Bauhaus Mirage Data File | 31120 |
| mls | Milestones Simplicity Project File | 21112 |
| mny | Microsoft Money Data File | 23664 |
| mobi | Mobipocket E-Book File | 193066 |
| mpd | Microsoft Project Database File | 14669 |
| mpl | Playlist Data File | 59426 |
| mpls | Mathcad Font File | 10797 |
| mpp | Microsoft Project File | 80843 |
| mta | AllShare Metadate File | 33977 |
| net | netViz Project File | 45171 |
| nfs | Network File System Temporary File | 24395 |
| nm | Number Magic File | 21583 |
| ntw | Lode Data Network File | 34251 |
| odp | OpenOffice Presentation File | 90160 |
| ods | OpenOffice Spreadsheet File | 193773 |
| ofc | Open Financial Connectivity File | 25481 |
| ofx | Open Financial Exchange File | 41273 |
| one | OneNote Document File | 52806 |
| opd | Optical Path Difference File | 25497 |
| org | Lotus Organizer File | 36559 |
| ost | Outlook Offline File | 30970 |
| out | Output File | 43420 |
| ovl | Rollercoaster Tycoon Data File | 26439 |
| p | Database Procedure File | 32179 |
| p2p | FolderShare File | 23165 |
| pck | Received Package File | 44866 |
| pdb | PowerDesigner physical model | 73147 |
| pf | Windows Prefetch File | 79497 |
| pfl | Family Lawyer Data File | 22307 |
| pj2 | Projector File | 18541 |
| pkt | Packet Tracer Network Simulation File | 44102 |
| poi | Magellan Maestro POI File | 24234 |
| pps | Powerpoint Slideshow File | 170742 |
| ppsx | Microsoft Office PowerPoint Slide Show File | 69670 |
| ppt | Powerpoint Slideshow File | 325053 |
| pptx | Powerpoint Presentation File | 361677 |
| pst | Outlook Personal Information File | 85785 |
| ptb | Power Tab Editor File | 32448 |
| ptt | MapPoint Template File | 24961 |
| qfx | Quicken Financial Exchange File | 29004 |
| qif | Quicken Import File | 40773 |
| qrp | QuickReport Report Files | 58681 |
| rdata | R Data File | 25525 |
| rdb | Redis Database File | 25269 |
| rpt | Report File | 69281 |
| rsd | RealSQLDatabase File | 45445 |
| sal | SORITEC Data File | 39232 |
| sbf | SmartBroker Pro Data File | 32143 |
| sfv | Simple File Verification | 191613 |
| shs | Shell Scrap File | 307707 |
| snp | Microsoft Acess Report Snapshot File | 34362 |
| spo | SPSS Data Output File | 27738 |
| sps | IBM SPSS File | 23891 |
| sql | Structured Query Language Data File | 62097 |
| sqlite | SQLite Database File | 64881 |
| stp | STEP File | 27657 |
| str | dBASE Structure List Object File | 39154 |
| ta0 | TaxAct File | 18015 |
| tar | Compressed Tape Archive File | 47344 |
| tbk | FoxPro Memo Field Backup File | 10504 |
| tdt | Thor Datatree File | 43371 |
| tec | Tecplot Analysis File | 148578 |
| tps | Clarion TopSpeed Data File | 9947 |
| tps | Multi Channel Measurement File | 5057 |
| tvr | Navicat for MySQL File | 29246 |
| tw | TW File | 31023 |
| uccapilog | UCC API Log File | 51333 |
| v2 | Microsoft Live Messenger Data file | 23762 |
| vce | Visual CE Class Type File | 30474 |
| vcf | vCard File | 72547 |
| w02 | Multiple Archive File | 40693 |
| wft | Nicolet WFT Export File | 22102 |
| wlmp | Live Movie Maker Project File | 141577 |
| wmdb | Windows Media Database File | 27371 |
| woc | Widows Orgchart Organization Chart File | 12689 |
| woc | Microsoft Office 2007 Organization File | 12692 |
| wtc | Watertec Database | 27131 |
| xlsx | Microsoft Excel XML File | 564648 |
| xml | Extensible Markup Language | 78489 |
| xtm | Xtremsplit Data File | 31895 |
| zix | Quicken Data File | 13304 |