| .ACCDA | Microsoft Corporation | Plug-in-filer | Access Add-in File | Microsoft Access | Microsoft Corporation |
| .ACCDB | Microsoft Corporation | Databasefiler | Access 2007 Database File | Microsoft Access | Microsoft Corporation |
| .ACCDC | Microsoft Corporation | Databasefiler | Microsoft Access Signed Package | Microsoft Access | Microsoft Corporation |
| .ACCDE | Microsoft Corporation | Databasefiler | Access Execute Only Database | Microsoft Access | Microsoft Corporation |
| .ACCDR | Microsoft Corporation | Databasefiler | Access Runtime Application | Microsoft Access | Microsoft Corporation |
| .ACCDT | Microsoft Corporation | Databasefiler | Microsoft Access Database Template | Microsoft Access | Microsoft Corporation |
| .ACCDU | Microsoft Corporation | Databasefiler | Microsoft Access Database Wizard | Microsoft Access | Microsoft Corporation |
| .ACCDW | Microsoft Corporation | Databasefiler | Microsoft Access Link | Microsoft Access | Microsoft Corporation |
| .ACCFT | Microsoft Corporation | Databasefiler | Microsoft Access Data Type Template | Microsoft Access | Microsoft Corporation |
| .ADE | Microsoft Corporation | Databasefiler | Access Project Extension | Microsoft Access | Microsoft Corporation |
| .ADN | Microsoft Corporation | Databasefiler | Access Blank Project Template | Microsoft Access | Microsoft Corporation |
| .ADP | Microsoft Corporation | Databasefiler | Access Project Extension | Microsoft Access | Microsoft Corporation |
| .AG4 | Microsoft Corporation | Datafiler | Microsoft Access G4 Data | Microsoft Access | Microsoft Corporation |
| .AW | Microsoft Corporation | Datafiler | Answer Wizard File | Microsoft Access | Microsoft Corporation |
| .BDB | Microsoft Corporation | Backupfiler | Microsoft Works Database Backup File | Microsoft Access | Microsoft Corporation |
| .DAP | SpeedBit | Uvanlige filer | Download Accelerator Plus Partial Download | Microsoft Access | Microsoft Corporation |
| .DB | Dwayne Richard Hipp | Databasefiler | Mobile Device Database File | Microsoft Access | Microsoft Corporation |
| .DBF | dBase, LLC | Databasefiler | Database File | Microsoft Access | Microsoft Corporation |
| .DIF | Microsoft Corporation | Datafiler | Data Interchange Format | Microsoft Access | Microsoft Corporation |
| .FFT | Adobe Systems Incorporated | Plug-in-filer | Adobe Audition Noise Print File | Microsoft Access | Microsoft Corporation |
| .FMD | Smith Micro Software | Datafiler | MotionArtist Document File | Microsoft Access | Microsoft Corporation |
| .G4 | Microsoft Corporation | Grafiske filer | Microsoft Access Image Format | Microsoft Access | Microsoft Corporation |
| .JET | Microsoft Corporation | Databasefiler | JET Database File | Microsoft Access | Microsoft Corporation |
| .LACCDB | Microsoft Corporation | Sideutformingsfiler | Microsoft Access Lock File | Microsoft Access | Microsoft Corporation |
| .LDB | Microsoft Corporation | Sideutformingsfiler | Microsoft Access Lock File | Microsoft Access | Microsoft Corporation |
| .MAD | Electronic Arts | Spillfiler | Electronic Arts Madcow Movie File | Microsoft Access | Microsoft Corporation |
| .MAF | National Cancer Institute | Datafiler | Mutation Annotation Format File | Microsoft Access | Microsoft Corporation |
| .MAG | Microsoft Corporation | Uvanlige filer | Access Diagram Shortcut File | Microsoft Access | Microsoft Corporation |
| .MAM | Microsoft Corporation | Eksekverbare filer | Microsoft Access Macro | Microsoft Access | Microsoft Corporation |
| .MAQ | Microsoft Corporation | Databasefiler | Microsoft Access Query | Microsoft Access | Microsoft Corporation |
| .MAR | Microsoft Corporation | Databasefiler | Microsoft Access Report | Microsoft Access | Microsoft Corporation |
| .MAS | Image Space Incorporated | Spillfiler | rFactor Track File | Microsoft Access | Microsoft Corporation |
| .MAT | MathWorks | Datafiler | MATLAB MAT-File | Microsoft Access | Microsoft Corporation |
| .MAV | Microsoft Corporation | Databasefiler | Access View File | Microsoft Access | Microsoft Corporation |
| .MAW | Microsoft Corporation | Databasefiler | Access Data Access Page | Microsoft Access | Microsoft Corporation |
| .MDA | Microsoft Corporation | Plug-in-filer | Access Add-in File | Microsoft Access | Microsoft Corporation |
| .MDB | Microsoft Corporation | Databasefiler | Microsoft Access Database | Microsoft Access | Microsoft Corporation |
| .MDBHTML | Microsoft Corporation | Databasefiler | Microsoft Access Database HTML File | Microsoft Access | Microsoft Corporation |
| .MDE | Microsoft Corporation | Plug-in-filer | Compiled Access Add-in File | Microsoft Access | Microsoft Corporation |
| .MDN | Microsoft Corporation | Databasefiler | Blank Access Database Template | Microsoft Access | Microsoft Corporation |
| .MDT | Microsoft Corporation | Datafiler | Microsoft Access Data File | Microsoft Access | Microsoft Corporation |
| .MDW | Microsoft Corporation | Uvanlige filer | Access Workgroup File | Microsoft Access | Microsoft Corporation |
| .MDZ | Microsoft Corporation | Datafiler | Access Wizard Template | Microsoft Access | Microsoft Corporation |
| .OMP | MatchWare | Sideutformingsfiler | OpenMind Windows Document | Microsoft Access | Microsoft Corporation |
| .PSV | Sony | Spillfiler | PlayStation 2 Save File | Microsoft Access | Microsoft Corporation |
| .SF1 | The U.S. Census Bureau | Databasefiler | 2010 Census Summary File 1 | Microsoft Access | Microsoft Corporation |
| .SNP | Microsoft Corporation | Sideutformingsfiler | Access Report Snapshot | Microsoft Access | Microsoft Corporation |
| .TBK | SumTotal Systems | Datafiler | ToolBook Project File | Microsoft Access | Microsoft Corporation |
| .VSR | Microsoft Corporation | Databasefiler | Microsoft Access Report | Microsoft Access | Microsoft Corporation |
| .WIZHTML | Microsoft Corporation | Datafiler | Microsoft Access HTML Template File | Microsoft Access | Microsoft Corporation |
| .XLSM | Microsoft Corporation | Regnearkfiler | Microsoft Excel Open XML Macro-Enabled Spreadsheet | Microsoft Access | Microsoft Corporation |
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