| File Extension: | OFS |
| File Type Description: | OptimFROG Dualstream Data |
| File Type Developer: | Florin Ghido |
| Primary Associated Software: | Nullsoft Winamp |
| Primary Software Developer: | Nullsoft |
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Release of the Nullsoft Winamp software program prompted the development of the OptimFROG Dualstream Data file type by Nullsoft. Annoymous user data statistics infer that OFS files are most popular in United States and with those using Windows 10 devices. A majority of people seeking info on OFS files are using the Google Chrome browser.
 | Nullsoft Winamp by Nullsoft |
| Windows 10 | Windows 11 | Windows 6 | Windows 8.1 |
 | Windows |
 | Mac |
 | Android |
| Extension | File Type Developer | File Category | File Type Description |
|---|---|---|---|
| .LAA | LucasArts Entertainment Company, LLC | Audio Files | LucasArts AdLib Audio File Format |
| .KSM | Pfaff | Data Files | Pfaff Embroidery Design File Format |
| .BAM | Broad Institute | Audio Files | Bob's Adlib Music File Format |
| .MID | Open Source | Audio Files | MIDI Audio File |
| .Q1 | Nullsoft | Settings Files | Winamp Equalizer Preset File |
| .NSV | Nullsoft | Video Files | Nullsoft Streaming Video File |
| .MP2 | New World Computing | Game Files | Heroes Of Might And Magic II Map File |
| .AIF | Apple | Audio Files | Audio Interchange File Format |
| .KAR | Various Developers | Audio Files | Karaoke MIDI File |
| .MP4 | Moving Picture Experts Group | Video Files | MPEG-4 Video File |
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