| Extension | Description | Views |
| 10 | IBM Voice Type Script File | 45815 |
| abs | Absolute Database File | 75995 |
| accdb | Access Database File | 61426 |
| adb | Alpha Five Database Information File | 27598 |
| bfs | Tivoli Storage Manager File | 28764 |
| blg | Binary Performance Log File | 24611 |
| btn | Buttonware File | 31996 |
| cat | Advanced Disk Catalog File | 27722 |
| cdb | Symbian OS Contacts Database File | 32177 |
| cdd | ConceptDraw Document File | 70889 |
| cdw | CadKey Organized Dialogue File | 99717 |
| cfp | Quicken Cash Flow Projection File | 27088 |
| cgd | Cricket Graph Data File | 27107 |
| cli | Client Management System Customer File | 25753 |
| csv | Comma Seperated Values | 90025 |
| ctt | Messenger contacts file | 23292 |
| d10 | Drake Software Data File | 5795 |
| dat | DAT | 392515 |
| dat | Inno Setup Uninstall Log | 37751 |
| data | CoreFSIF database | 77680 |
| db | Database File | 430845 |
| db3 | dBase III Database File | 44323 |
| dbc | Visual FoxPro Databse File | 32813 |
| dbf | Database File | 129432 |
| ddm | Alpha Five Table Objects File | 24660 |
| dgdat | DoubleGIS Database File | 28134 |
| dropbox | Dropbox File | 68643 |
| dsn | ODBC Data Source File | 45877 |
| dta | Stata Dataset File | 37712 |
| edb | Exchange Information Store Database File | 43018 |
| esp | ACD/Labs Data File | 44931 |
| et | Easitech Lesson Data File | 41372 |
| etl | Microsoft Event Trace Log File | 118809 |
| ex4 | Expert Advisor File | 63330 |
| exp | Export File | 42475 |
| fcd | First Choice Database File | 15181 |
| fdb | Dynamics NAV Database File | 57315 |
| fid | Bruker Aspect NMR Data File | 14289 |
| fil | Files List File | 73323 |
| fo | XSL-FO Form File | 24269 |
| fp3 | FileMaker Pro 3 Database File | 19547 |
| frm | MySQL Database Format File | 45194 |
| gab | Global Address Book File | 21006 |
| gdb | Borland Interbase Database Files | 51746 |
| gp3 | Guitar Pro 3 Tablature File | 39986 |
| groups | WebMoney Group File | 21702 |
| ics | iCalendar Calendar File | 116018 |
| id2 | Windows Live Messenger Emoticon File | 24050 |
| idcl | Inventor Desktop Content File | 33116 |
| iff | Interchange File Format File | 30381 |
| iif | Quickbooks Interchange File | 19877 |
| ins | Inspiration File | 50669 |
| irx | Brewer Irradiation File | 39776 |
| itdb | iTunes Database File | 32058 |
| itl | Music Library File | 30652 |
| itx | ITX Form Template | 17193 |
| jgw | JPG World file | 27666 |
| joined | HJSplit Data File | 25300 |
| kdf | VisiQuest Data File | 26009 |
| kwi | Navigation Data File | 45113 |
| laccdb | Microsoft Access Lock File | 61386 |
| lbl | dBase Label File | 35049 |
| ldf | Server Transaction Log File | 35937 |
| ldif | LDAP Data Interchange Format File | 29396 |
| lib | AS/400 Library File | 49818 |
| lock | Net Framework Lock File | 58907 |
| mar | Microsoft Access Report File | 14786 |
| mat | Microsoft Access Shortcut File | 15951 |
| mat | MATLAB Binary File | 16804 |
| mbb | ManaBook File | 22374 |
| md | Chaos Desktop Metadata File | 74586 |
| mdb | Microsoft Access Database File | 105521 |
| mde | Microsoft Access Compiled Database File | 39378 |
| mdl | Rose Model File | 49735 |
| mdx | Database Index File | 135277 |
| menc | Windows Mobile Encrypted File | 53388 |
| met | eMule Information File | 41590 |
| mir | Bauhaus Mirage Data File | 31516 |
| mls | Milestones Simplicity Project File | 21557 |
| mny | Microsoft Money Data File | 24094 |
| mobi | Mobipocket E-Book File | 193600 |
| mpd | Microsoft Project Database File | 14802 |
| mpl | Playlist Data File | 59867 |
| mpls | Mathcad Font File | 11047 |
| mpp | Microsoft Project File | 81324 |
| mta | AllShare Metadate File | 34402 |
| net | netViz Project File | 45650 |
| nfs | Network File System Temporary File | 24843 |
| nm | Number Magic File | 22023 |
| ntw | Lode Data Network File | 34698 |
| odp | OpenOffice Presentation File | 90665 |
| ods | OpenOffice Spreadsheet File | 194468 |
| ofc | Open Financial Connectivity File | 25901 |
| ofx | Open Financial Exchange File | 41764 |
| one | OneNote Document File | 53311 |
| opd | Optical Path Difference File | 25947 |
| org | Lotus Organizer File | 37022 |
| ost | Outlook Offline File | 31419 |
| out | Output File | 43922 |
| ovl | Rollercoaster Tycoon Data File | 26903 |
| p | Database Procedure File | 32616 |
| p2p | FolderShare File | 23580 |
| pck | Received Package File | 45353 |
| pdb | PowerDesigner physical model | 73659 |
| pf | Windows Prefetch File | 79956 |
| pfl | Family Lawyer Data File | 22750 |
| pj2 | Projector File | 18975 |
| pkt | Packet Tracer Network Simulation File | 44581 |
| poi | Magellan Maestro POI File | 24628 |
| pps | Powerpoint Slideshow File | 171273 |
| ppsx | Microsoft Office PowerPoint Slide Show File | 70147 |
| ppt | Powerpoint Slideshow File | 325733 |
| pptx | Powerpoint Presentation File | 362565 |
| pst | Outlook Personal Information File | 86298 |
| ptb | Power Tab Editor File | 32955 |
| ptt | MapPoint Template File | 25382 |
| qfx | Quicken Financial Exchange File | 29477 |
| qif | Quicken Import File | 41263 |
| qrp | QuickReport Report Files | 59174 |
| rdata | R Data File | 25970 |
| rdb | Redis Database File | 25698 |
| rpt | Report File | 69799 |
| rsd | RealSQLDatabase File | 45959 |
| sal | SORITEC Data File | 39639 |
| sbf | SmartBroker Pro Data File | 32578 |
| sfv | Simple File Verification | 192094 |
| shs | Shell Scrap File | 308319 |
| snp | Microsoft Acess Report Snapshot File | 34833 |
| spo | SPSS Data Output File | 28228 |
| sps | IBM SPSS File | 24300 |
| sql | Structured Query Language Data File | 62559 |
| sqlite | SQLite Database File | 65437 |
| stp | STEP File | 27996 |
| str | dBASE Structure List Object File | 39636 |
| ta0 | TaxAct File | 18431 |
| tar | Compressed Tape Archive File | 47914 |
| tbk | FoxPro Memo Field Backup File | 10664 |
| tdt | Thor Datatree File | 43807 |
| tec | Tecplot Analysis File | 149099 |
| tps | Clarion TopSpeed Data File | 10018 |
| tps | Multi Channel Measurement File | 5122 |
| tvr | Navicat for MySQL File | 29687 |
| tw | TW File | 31518 |
| uccapilog | UCC API Log File | 51822 |
| v2 | Microsoft Live Messenger Data file | 24288 |
| vce | Visual CE Class Type File | 31022 |
| vcf | vCard File | 73091 |
| w02 | Multiple Archive File | 41123 |
| wft | Nicolet WFT Export File | 22539 |
| wlmp | Live Movie Maker Project File | 142047 |
| wmdb | Windows Media Database File | 27840 |
| woc | Widows Orgchart Organization Chart File | 13067 |
| woc | Microsoft Office 2007 Organization File | 12995 |
| wtc | Watertec Database | 27631 |
| xlsx | Microsoft Excel XML File | 565625 |
| xml | Extensible Markup Language | 79099 |
| xtm | Xtremsplit Data File | 32420 |
| zix | Quicken Data File | 13629 |