| .ABF | Adobe Systems Incorporated | Arquivos de fonte | Adobe Binary Screen Font File | Microsoft SQL Server | Microsoft Corporation |
| .BAK | Various Developers | Arquivos de cópia | General Backup File | Microsoft SQL Server | Microsoft Corporation |
| .BLB | SourceForge | Arquivos de jogos | Interactive Fiction Package Game File | Microsoft SQL Server | Microsoft Corporation |
| .BSM | Take-Two Interactive | Arquivos de jogos | Bioshock Map Data | Microsoft SQL Server | Microsoft Corporation |
| .CKP | Microsoft Corporation | Arquivos de banco de dados | SQL Server Checkpoint File | Microsoft SQL Server | Microsoft Corporation |
| .CUB | Microsoft Corporation | Arquivos de dados | Analysis Services Cube File | Microsoft SQL Server | Microsoft Corporation |
| .DBML | Microsoft Corporation | Arquivos de desenvolvedor | Visual Studio OR Design File | Microsoft SQL Server | Microsoft Corporation |
| .DMX | Valve | Arquivos de vídeo | Source Filmmaker Project File | Microsoft SQL Server | Microsoft Corporation |
| .DRI | Microsoft Corporation | Arquivos de banco de dados | Microsoft SQL Server Replication File | Microsoft SQL Server | Microsoft Corporation |
| .DS | DAZ 3D | Arquivos 3D | DAZ Studio 1/2 Script | Microsoft SQL Server | Microsoft Corporation |
| .DTS | CyberLink | Arquivos de áudio | DTS Encoded Audio File | Microsoft SQL Server | Microsoft Corporation |
| .JOR | Microsoft Corporation | Arquivos miscelâneas | Microsoft SQL Server Journal File | Microsoft SQL Server | Microsoft Corporation |
| .LDF | Microsoft Corporation | Arquivos de dados | SQL Server Transaction Log File | Microsoft SQL Server | Microsoft Corporation |
| .MDF | Alcohol Soft | Arquivos de imagem de disco | Alcohol 120% Disk Image File Format | Microsoft SQL Server | Microsoft Corporation |
| .MDX | Disc Soft Ltd. | Arquivos de imagem de disco | Extended Media Descriptor File | Microsoft SQL Server | Microsoft Corporation |
| .NDF | Microsoft Corporation | Arquivos de banco de dados | SQL Server Secondary Database File | Microsoft SQL Server | Microsoft Corporation |
| .QRY | Oracle Corporation | Arquivos de banco de dados | Query File | Microsoft SQL Server | Microsoft Corporation |
| .RLL | Microsoft Corporation | Arquivos de configuração | Microsoft Resource Library | Microsoft SQL Server | Microsoft Corporation |
| .SDF | Microsoft Corporation | Arquivos de banco de dados | SQL Server Compact Database File | Microsoft SQL Server | Microsoft Corporation |
| .SQR | Oracle Corporation | Arquivos de dados | SQL Program File | Microsoft SQL Server | Microsoft Corporation |
| .TRC | Microsoft Corporation | Arquivos de banco de dados | SQL Server Trace File | Microsoft SQL Server | Microsoft Corporation |
| .TRN | Microsoft Corporation | Arquivos de cópia | SQL Server Transaction Log Backup File | Microsoft SQL Server | Microsoft Corporation |
| .VIW | Microsoft Corporation | Arquivos de banco de dados | Microsoft SQL Server View Script File | Microsoft SQL Server | Microsoft Corporation |
| .WRK | Cakewalk, Inc. | Arquivos de áudio | Cakewalk Music Project | Microsoft SQL Server | Microsoft Corporation |
| .XPP | Microsoft Corporation | Arquivos de desenvolvedor | X++ Source Code File | Microsoft SQL Server | Microsoft Corporation |
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