Convert GZI to R99

Understanding gzi and r99 file formats

GZI files are typically compressed files using the gzip compression algorithm, commonly found in Unix and Linux environments. These files are used to reduce the size of data for storage or transmission. The R99 file extension, on the other hand, is associated with RAR multi-volume archives. Specifically, R99 files are part of a split archive set created by WinRAR or similar archiving tools, where each part is named sequentially (e.g., .r00, .r01, ..., .r99).

How to convert gzi to r99

Direct conversion from GZI to R99 is not typical, as they serve different purposes: GZI is for compression, while R99 is for archiving and splitting large files. However, you can decompress the GZI file and then re-archive the resulting file into a multi-part RAR archive, which will include an R99 part if the archive is large enough.

Step-by-step conversion process

1. Decompress the GZI file:
   • On Windows, use 7-Zip or WinRAR to extract the contents of the .gzi file.
   • On Linux, use the command: gunzip filename.gzi
2. Archive the extracted file into a multi-part RAR archive:
   • Open WinRAR.
   • Select the extracted file.
   • Go to File → Add to archive....
   • Set the archive format to RAR.
   • In the Split to volumes, size field, specify the volume size (e.g., 100 MB) to ensure multiple parts are created, including an .r99 file if the archive is large enough.
   • Click OK to create the archive.

Best software for the conversion

The recommended software for this process is WinRAR, as it natively supports creating multi-part RAR archives and will automatically generate .r99 files as needed. 7-Zip can be used for extraction, but only WinRAR can create the R99 split archives.

Summary

To convert a GZI file to an R99 file, first decompress the GZI file, then use WinRAR to create a multi-part RAR archive. The R99 file will be generated as part of the archive set if the total size requires it.