| File Extension: | D1 |
| File Type Description: | Progress Database |
| File Type Developer: | Progress Software Corporation |
| Primary Associated Software: | ObjectStore |
| Primary Software Developer: | ESW Capital Group |
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The D1 file extension is a Progress Database file developed originally by ESW Capital Group for ObjectStore. Annoymous user data statistics infer that D1 files are most popular in United States and with those using Windows 10 devices. A majority of people seeking info on D1 files are using the Google Chrome browser.
 | OpenEdge by Progress Software Corporation |
 | ObjectStore by ESW Capital Group |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | Linux |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .D2 | Progress Software Corporation | Database Files | Progress Database |
| .B2 | Progress Software Corporation | Database Files | Progress Database |
| .AI | Adobe Systems Incorporated | Vector Image Files | Adobe Illustrator File |
| .RBF | Microsoft Corporation | Backup Files | Windows Installer Rollback File |
| .DBW | Ortus Solutions | Database Files | DataBoss Database |
| .DCB | LexisNexis | Database Files | Concordance Database File |
| .SG3 | SourceForge | Database Files | ChessDB Game File |
| .JTX | Microsoft Corporation | Page Layout Files | XPS Document File |
| .~AP | Micro Focus International plc | Database Files | Borland C++ Old AppExpert Project Database File |
| .ASK | askSam Systems | Database Files | AskSam Database |
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