Convert CAB to 7-Z

Understanding CAB and 7-Z 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 in a single archive.

7-Z files refer to the 7z format, a high-compression archive format created by the 7-Zip utility. 7z files support strong AES-256 encryption, advanced compression algorithms, and can handle large file sizes efficiently.

Why convert CAB to 7-Z?

Converting CAB files to 7z format can provide better compression ratios, improved security features, and broader compatibility with modern archiving tools. The 7z format is widely supported across platforms and is ideal for efficient storage and sharing.

How to convert CAB to 7-Z

The most effective way to convert CAB files to 7z is by extracting the contents of the CAB archive and then recompressing them into a 7z file. This process can be done using free and reliable software.

Best software for CAB to 7-Z conversion

7-Zip is the recommended tool for this conversion. It is open-source, supports both CAB and 7z formats, and is available for Windows, with unofficial ports for other platforms.

Step-by-step conversion using 7-Zip

1. Download and install 7-Zip if you don't have it already.
2. Right-click your .cab file and select 7-Zip → Extract Here to extract its contents.
3. Select the extracted files or folder, right-click, and choose 7-Zip → Add to archive....
4. In the dialog, set Archive format to 7z.
5. Click OK to create your new .7z archive.

Alternative converters

Other tools like PeaZip and WinRAR also support CAB and 7z formats, but 7-Zip remains the most straightforward and free solution.

Summary

Converting CAB to 7z is simple with 7-Zip: extract the CAB, then compress the contents into a 7z archive for better compression and compatibility.