Convert R04 to 7-Z

Understanding r04 and 7-z file formats

R04 files are part of a multi-volume RAR archive, typically created by WinRAR or similar archiving tools. These files are not standalone archives but segments of a larger compressed file set, usually named sequentially (e.g., .r00, .r01, .r02, ..., .r04). To extract the original data, you need all parts of the archive.

7-Z files refer to the 7z format, a high-compression archive format developed by 7-Zip. 7z files support strong AES-256 encryption, advanced compression algorithms, and are widely used for efficient data storage and sharing.

How to convert r04 to 7-z

Since an R04 file is only a segment of a complete RAR archive, you must first gather all parts of the archive (including the .rar file and all .r0x files). The conversion process involves extracting the full contents from the RAR archive and then recompressing them into a 7z file.

Step-by-step conversion process

1. Collect all RAR parts: Ensure you have the .rar file and all associated .r0x files, including .r04.
2. Extract the archive: Use a tool like WinRAR or 7-Zip to extract the complete contents. With 7-Zip, right-click the .rar file and select 7-Zip → Extract Here.
3. Compress to 7z: After extraction, select the extracted files or folder, right-click, and choose 7-Zip → Add to archive.... In the dialog, set the archive format to 7z and configure any desired compression options. Click OK to create your .7z file.

Recommended software for conversion

• 7-Zip (Windows, free): Handles both RAR extraction and 7z compression efficiently.
• WinRAR (Windows, paid with trial): Can extract RAR multi-part archives, but for 7z creation, use 7-Zip.
• PeaZip (Windows/Linux, free): Another versatile archiver supporting both formats.

Summary

To convert an R04 file to 7z, extract the full RAR archive using all parts, then recompress the contents into a 7z file using 7-Zip or similar software. This ensures you retain all original data in a modern, efficient archive format.