| File Extension: | B4S |
| File Type Description: | Winamp Playlist File |
| File Type Developer: | Nullsoft |
| 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 Winamp Playlist File file type by Nullsoft. Internal website statistics show that B4S files are most popular with users in United States and those running the Windows 10 operating system. A high percentage of these users browse the web using Google Chrome.
 | 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 |
|---|---|---|---|
| .WPL | Microsoft Corporation | Video Files | Windows Media Player Playlist |
| .CDG | Open Source | Raster Image Files | Compact Disc Plus Graphics Image |
| .LDS | GNU Project | Developer Files | Binutils LD Linker Script |
| .AHX | Abyss | Audio Files | WinAHX Tracker Module |
| .AIF | Apple | Audio Files | Audio Interchange File Format |
| .SA2 | Nullsoft | Audio Files | Suprise! Adlib Tracker Music Module |
| .SAP | Atari Corporation | Audio Files | Atari SAP Music File |
| .MPEG | Unknown Developer | Video Files | MPEG Movie |
| .V2M | Farbrausch | Audio Files | V2 Synthesizer Audio File |
| .ROL | Ad Lib, Inc. | Audio Files | Adlib Synthesized Instrument |
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