| File Extension: | D2 |
| 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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Progress Database files are the most popular type of files to carry the D2 file extension, originally developed by ESW Capital Group for ObjectStore. Visitor data analysis shows that these Progress Database files are typically seen on Windows 10 user machines from United States. A vast majority of these users are opting to use Google Chrome as their preferred internet 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 |
|---|---|---|---|
| .B2 | Progress Software Corporation | Database Files | Progress Database |
| .D1 | Progress Software Corporation | Database Files | Progress Database |
| .AI | Adobe Systems Incorporated | Vector Image Files | Adobe Illustrator File |
| .CEP | Nomitech | Database Files | CostOS Estimating Project Database File |
| .NS3 | IBM | Database Files | Lotus Notes 3 Database |
| .SSO | Interscape | Database Files | ChessDB Search Options Data |
| .FCD | Smart Projects | Disk Image Files | Virtual CD Format |
| .WRK | Cakewalk, Inc. | Audio Files | Cakewalk Music Project |
| .BTX | SmartWare Corporation | Backup Files | SmartWare Backup Text File |
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