Open ACT files with File Viewer Plus
Do you need to open an ACT file?
File Viewer Plus can open ACT (S1 MP3 Player Recorded Audio) files and offers standard playback options. You can also convert ACT files to more widely supported formats, such as MP3 and MPEG-4 (M4A).
Play ACT files with our easy-to-use audio player. Try File Viewer Plus for free today!
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What is an .ACT file?
ACT files are audio files saved in the S1 MP3 Player (ACT) format, which was developed for use on early S1 MP3 players and other low-end digital audio devices. The format stores highly compressed voice or music recordings, often at low bitrates to save storage space. ACT files were designed specifically for these devices and are not widely supported by standard media players.
You may encounter ACT files when transferring recordings from older S1 MP3 players, accessing voice memos saved in this format, or working with archived portable audio collections. File Viewer Plus can play ACT files and convert them to the more widely supported MP3 or M4A formats.
About File Viewer Plus
File Viewer Plus is the universal file viewer for Windows. Why pay for dozens of software programs when you only need one? Install File Viewer Plus, and you'll be able open 400 file types with a single app.
You can also edit, save, print, and convert your files. Unknown file on your PC? No problem — the app's advanced file identification algorithm can identify over 10,000 file formats, including files with incorrect or missing file extensions. File Viewer Plus is the ultimate file viewer "plus" much more!
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