| File Extension: | GD3 |
| File Type Description: | GreatFamily Tree File |
| File Type Developer: | GreatProgs |
| Primary Associated Software: | GreatFamily |
| Primary Software Developer: | GreatProgs |
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Release of the GreatFamily software program prompted the development of the GreatFamily Tree File file type by GreatProgs. According to our internal data, GreatFamily Tree File files are most popular with users in United States, with a majority of them running Windows 10. A vast majority of these users are opting to use Google Chrome as their preferred internet browser.
 | GreatFamily by GreatProgs |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .GRG | GreatProgs | Graphic Files | GreatFamily Graphic Gallery |
| ._SLN90 | Microsoft Corporation | Data Files | Microsoft Visual Studio File |
| .HYC | Corel | Data Files | Corel WordPerfect Hyphenation Data File |
| .9XY | Texas Instruments, Inc. | Data Files | TI-92 Plus Data File |
| .JDT | Adobe Systems Incorporated | Data Files | Accelio Capture Classic Filler Data |
| .C10 | e-merge GmbH | Compressed Files | WinAce Split Archive File |
| .RMX | RealNetworks | Audio Files | RealJukebox Format |
| .MZT | David Webber | Data Files | MOZART Template File |
| .PLN | Microsoft Corporation | Game Files | Flight Simulator Flight Plan |
| .STW | Oracle Corporation | Text Files | StarOffice Document Template |
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