Convert CAB to ARC

Understanding CAB and ARC file formats

CAB (Cabinet) files are compressed archive files developed by Microsoft, commonly used for software installation packages and Windows system files. They support lossless data compression and can contain multiple files and folders in a single archive.

ARC files are also compressed archive files, but they use a different compression algorithm and were popular in the 1980s and 1990s, especially on DOS systems. ARC files are less common today but are still supported by some archiving tools for legacy compatibility.

Why convert CAB to ARC?

Converting a CAB file to an ARC file may be necessary for compatibility with older software or systems that only support the ARC format. It can also be useful for archival purposes or to meet specific software requirements.

How to convert CAB to ARC

There is no direct, one-step converter for CAB to ARC due to the rarity of the ARC format. However, you can achieve the conversion in two steps:

1. Extract the contents of the CAB file using an archive manager.
2. Re-compress the extracted files into an ARC archive using compatible software.

Recommended software for CAB to ARC conversion

• PeaZip: A free, open-source archiver that can extract CAB files and create ARC archives. To convert:
  1. Open PeaZip and use File → Open to extract the CAB file.
  2. Select the extracted files, then use File → Add to archive and choose ARC as the format.
• WinRAR: Can extract CAB files and, with the right plugins, create ARC files. The process is similar: extract, then re-archive.
• Command-line tools: For advanced users, tools like arc.exe (DOS) or unarj (for ARC/ARJ) can be used after extraction.

Important considerations

• ARC is an outdated format; use it only if required for compatibility.
• Always verify the integrity of files after conversion.
• Modern alternatives like ZIP or 7Z offer better compression and compatibility.