Convert 7Z to ARJ

Understanding 7z and arj file formats

7z is a popular compressed archive file format developed by the 7-Zip project. It uses advanced compression algorithms, such as LZMA and LZMA2, to achieve high compression ratios. 7z files can contain multiple files and folders, and support strong AES-256 encryption.

ARJ (Archived by Robert Jung) is an older compressed archive format that was widely used in the 1990s, especially on DOS systems. While it offers solid compression and error recovery features, it is less common today compared to formats like ZIP or 7z.

How to convert 7z to arj

Direct conversion from 7z to arj is not typically supported by most archiving tools, as these formats use different compression algorithms and structures. The standard approach is to first extract the contents of the 7z archive, then re-compress them into an ARJ archive.

Recommended software for conversion

The best software for this process is 7-Zip (for extraction) and WinRAR or the original ARJ utility (for ARJ creation). Here’s how you can do it:

1. Open your 7z file with 7-Zip and extract its contents to a folder.
2. Use WinRAR (which supports ARJ) or the ARJ command-line tool to create a new ARJ archive from the extracted files.

In WinRAR:

• Select the files/folders you want to compress.
• Click Add.
• In the Archive format dropdown, select ARJ.
• Click OK to create the ARJ archive.

Online converters

There are few online converters that support both 7z extraction and ARJ creation due to the rarity of the ARJ format. For best results and security, use desktop software as described above.

Summary

To convert a 7z file to arj, extract the 7z archive with 7-Zip, then re-archive the files using WinRAR or the ARJ utility. This two-step process ensures compatibility and preserves your data.