| File Extension: | DQL |
| File Type Description: | DataEase Database |
| File Type Developer: | Sapphire Group |
| Primary Associated Software: | DataEase |
| Primary Software Developer: | 4ThePeople Limited |
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DataEase Database files are the most popular type of files to carry the DQL file extension, originally developed by 4ThePeople Limited for DataEase. Internal website statistics show that DQL files are most popular with users in United States and those running the Windows 10 operating system. Generally, we have found that most of these people are Google Chrome users.
 | DataEase by 4ThePeople Limited |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | DOS |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .DBA | PDC (Prolog Development Center) | Database Files | Turbo Prolog Database |
| .DIN | 4ThePeople Limited | Developer Files | DataEase Installation Script |
| .WMDB | Microsoft Corporation | Database Files | Windows Media Database File |
| .VPD | Yu Higuchi | 3D Image Files | MikuMikuDance Vocaloid Pose Data File |
| .MDF | Alcohol Soft | Disk Image Files | Alcohol 120% Disk Image File Format |
| .CND | Melco | CAD Files | Melco Condensed Embroidery File |
| .FRM | Oracle Corporation | Database Files | MySQL Database Format File |
| .H! | Perfect world Inc. | Database Files | Perfect Database Help Database File |
| .SD2 | Avid Technology | Audio Files | Sound Designer II File |
| .R2K | BTM Innovation Pty | Database Files | Repertoire 2000 Music Database |
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