| 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.
 | ObjectStore by ESW Capital Group |
 | OpenEdge by Progress Software Corporation |
| 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 |
| .4DD | 4D, Inc | Database Files | 4th Dimension Database Data File |
| .RPD | RIB Software | Database Files | RIB Project Database File |
| .DBA | PDC (Prolog Development Center) | Database Files | Turbo Prolog Database |
| .PNZ | ProVUE Development | Database Files | Panorama Database Set |
| .IX2 | Corel | Database Files | WordPerfect Address Book |
| .FCD | Smart Projects | Disk Image Files | Virtual CD Format |
| .NS3 | IBM | Database Files | Lotus Notes 3 Database |
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