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| Extension | File Type Developer | File Category | File Type Description | Software | Software Developer |
|---|---|---|---|---|---|
| .ABA | Palm | Backup Files | Palm Address Book Archive | Palm Desktop | Palm |
| .DBA | PDC (Prolog Development Center) | Database Files | Turbo Prolog Database | Palm Desktop | Palm |
| .DBF | dBase, LLC | Database Files | Database File | Palm OS | Palm |
| .MPA | Unknown Developer | Audio Files | MPEG-2 Audio File | Palm OS | Palm |
| .PBD | EaseUS | Backup Files | EaseUS Todo Backup Backup File | Palm OS | Palm |
| .PRC | Adobe Systems Incorporated | 3D Image Files | Product Representation Compact File | Palm Desktop | Palm |
| .SIS | Valve | Backup Files | Steam Game Backup Information File | Palm OS Emulator | Palm |
| .SKY | Palm | Video Files | ActiveSky Movie Clips For Palm OS | Palm OS | Palm |
| .VCF | Palm | Data Files | VCard File | Palm Desktop | Palm |
| .VS | OpenGL | 3D Image Files | Vertex Shader File | Palm OS | Palm |
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