| Extension | Description | Views |
| 10 | IBM Voice Type Script File | 45630 |
| abs | Absolute Database File | 75815 |
| accdb | Access Database File | 61238 |
| adb | Alpha Five Database Information File | 27420 |
| bfs | Tivoli Storage Manager File | 28606 |
| blg | Binary Performance Log File | 24457 |
| btn | Buttonware File | 31824 |
| cat | Advanced Disk Catalog File | 27536 |
| cdb | Symbian OS Contacts Database File | 31994 |
| cdd | ConceptDraw Document File | 70716 |
| cdw | CadKey Organized Dialogue File | 99519 |
| cfp | Quicken Cash Flow Projection File | 26899 |
| cgd | Cricket Graph Data File | 26933 |
| cli | Client Management System Customer File | 25575 |
| csv | Comma Seperated Values | 89814 |
| ctt | Messenger contacts file | 23117 |
| d10 | Drake Software Data File | 5758 |
| dat | DAT | 392334 |
| dat | Inno Setup Uninstall Log | 37643 |
| data | CoreFSIF database | 77469 |
| db | Database File | 430599 |
| db3 | dBase III Database File | 44121 |
| dbc | Visual FoxPro Databse File | 32624 |
| dbf | Database File | 129214 |
| ddm | Alpha Five Table Objects File | 24448 |
| dgdat | DoubleGIS Database File | 27929 |
| dropbox | Dropbox File | 68450 |
| dsn | ODBC Data Source File | 45687 |
| dta | Stata Dataset File | 37504 |
| edb | Exchange Information Store Database File | 42841 |
| esp | ACD/Labs Data File | 44742 |
| et | Easitech Lesson Data File | 41214 |
| etl | Microsoft Event Trace Log File | 118633 |
| ex4 | Expert Advisor File | 63162 |
| exp | Export File | 42297 |
| fcd | First Choice Database File | 15036 |
| fdb | Dynamics NAV Database File | 57142 |
| fid | Bruker Aspect NMR Data File | 14196 |
| fil | Files List File | 73144 |
| fo | XSL-FO Form File | 24112 |
| fp3 | FileMaker Pro 3 Database File | 19446 |
| frm | MySQL Database Format File | 45009 |
| gab | Global Address Book File | 20839 |
| gdb | Borland Interbase Database Files | 51561 |
| gp3 | Guitar Pro 3 Tablature File | 39814 |
| groups | WebMoney Group File | 21488 |
| ics | iCalendar Calendar File | 115786 |
| id2 | Windows Live Messenger Emoticon File | 23875 |
| idcl | Inventor Desktop Content File | 32921 |
| iff | Interchange File Format File | 30189 |
| iif | Quickbooks Interchange File | 19710 |
| ins | Inspiration File | 50493 |
| irx | Brewer Irradiation File | 39624 |
| itdb | iTunes Database File | 31887 |
| itl | Music Library File | 30475 |
| itx | ITX Form Template | 16991 |
| jgw | JPG World file | 27501 |
| joined | HJSplit Data File | 25122 |
| kdf | VisiQuest Data File | 25853 |
| kwi | Navigation Data File | 44941 |
| laccdb | Microsoft Access Lock File | 61201 |
| lbl | dBase Label File | 34874 |
| ldf | Server Transaction Log File | 35767 |
| ldif | LDAP Data Interchange Format File | 29232 |
| lib | AS/400 Library File | 49624 |
| lock | Net Framework Lock File | 58739 |
| mar | Microsoft Access Report File | 14635 |
| mat | Microsoft Access Shortcut File | 15785 |
| mat | MATLAB Binary File | 16701 |
| mbb | ManaBook File | 22201 |
| md | Chaos Desktop Metadata File | 74386 |
| mdb | Microsoft Access Database File | 105314 |
| mde | Microsoft Access Compiled Database File | 39189 |
| mdl | Rose Model File | 49550 |
| mdx | Database Index File | 135102 |
| menc | Windows Mobile Encrypted File | 53205 |
| met | eMule Information File | 41409 |
| mir | Bauhaus Mirage Data File | 31363 |
| mls | Milestones Simplicity Project File | 21385 |
| mny | Microsoft Money Data File | 23926 |
| mobi | Mobipocket E-Book File | 193407 |
| mpd | Microsoft Project Database File | 14749 |
| mpl | Playlist Data File | 59705 |
| mpls | Mathcad Font File | 10944 |
| mpp | Microsoft Project File | 81160 |
| mta | AllShare Metadate File | 34235 |
| net | netViz Project File | 45478 |
| nfs | Network File System Temporary File | 24672 |
| nm | Number Magic File | 21867 |
| ntw | Lode Data Network File | 34535 |
| odp | OpenOffice Presentation File | 90478 |
| ods | OpenOffice Spreadsheet File | 194238 |
| ofc | Open Financial Connectivity File | 25747 |
| ofx | Open Financial Exchange File | 41596 |
| one | OneNote Document File | 53124 |
| opd | Optical Path Difference File | 25782 |
| org | Lotus Organizer File | 36856 |
| ost | Outlook Offline File | 31249 |
| out | Output File | 43741 |
| ovl | Rollercoaster Tycoon Data File | 26731 |
| p | Database Procedure File | 32444 |
| p2p | FolderShare File | 23419 |
| pck | Received Package File | 45186 |
| pdb | PowerDesigner physical model | 73471 |
| pf | Windows Prefetch File | 79795 |
| pfl | Family Lawyer Data File | 22589 |
| pj2 | Projector File | 18804 |
| pkt | Packet Tracer Network Simulation File | 44398 |
| poi | Magellan Maestro POI File | 24473 |
| pps | Powerpoint Slideshow File | 171080 |
| ppsx | Microsoft Office PowerPoint Slide Show File | 69964 |
| ppt | Powerpoint Slideshow File | 325482 |
| pptx | Powerpoint Presentation File | 362250 |
| pst | Outlook Personal Information File | 86102 |
| ptb | Power Tab Editor File | 32772 |
| ptt | MapPoint Template File | 25234 |
| qfx | Quicken Financial Exchange File | 29310 |
| qif | Quicken Import File | 41082 |
| qrp | QuickReport Report Files | 59009 |
| rdata | R Data File | 25815 |
| rdb | Redis Database File | 25550 |
| rpt | Report File | 69617 |
| rsd | RealSQLDatabase File | 45769 |
| sal | SORITEC Data File | 39492 |
| sbf | SmartBroker Pro Data File | 32399 |
| sfv | Simple File Verification | 191902 |
| shs | Shell Scrap File | 308107 |
| snp | Microsoft Acess Report Snapshot File | 34646 |
| spo | SPSS Data Output File | 28042 |
| sps | IBM SPSS File | 24142 |
| sql | Structured Query Language Data File | 62396 |
| sqlite | SQLite Database File | 65222 |
| stp | STEP File | 27856 |
| str | dBASE Structure List Object File | 39454 |
| ta0 | TaxAct File | 18282 |
| tar | Compressed Tape Archive File | 47707 |
| tbk | FoxPro Memo Field Backup File | 10603 |
| tdt | Thor Datatree File | 43652 |
| tec | Tecplot Analysis File | 148921 |
| tps | Clarion TopSpeed Data File | 9986 |
| tps | Multi Channel Measurement File | 5095 |
| tvr | Navicat for MySQL File | 29524 |
| tw | TW File | 31346 |
| uccapilog | UCC API Log File | 51646 |
| v2 | Microsoft Live Messenger Data file | 24084 |
| vce | Visual CE Class Type File | 30825 |
| vcf | vCard File | 72899 |
| w02 | Multiple Archive File | 40957 |
| wft | Nicolet WFT Export File | 22377 |
| wlmp | Live Movie Maker Project File | 141862 |
| wmdb | Windows Media Database File | 27657 |
| woc | Widows Orgchart Organization Chart File | 12917 |
| woc | Microsoft Office 2007 Organization File | 12880 |
| wtc | Watertec Database | 27427 |
| xlsx | Microsoft Excel XML File | 565253 |
| xml | Extensible Markup Language | 78870 |
| xtm | Xtremsplit Data File | 32238 |
| zix | Quicken Data File | 13493 |