What are R81 files and how to open them
Are you having problems opening a R81 file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.
What is a R81 file?
A .R81 file is a Split WinRAR Archive (part 83) file.
Files with the .R81 file extension are split archive files created by older versions of WinRAR. Newer versions name the files name.partXX.rar.
WinRAR and other compression tools take collections of files and compress them into a single archive file, normally to save hard drive space and to make distributing the file collection easier.
Archive files can get very big, and sometimes it is necessary to split them into smaller parts to fit on CDs or USB drives. When an archive file is split, each part of the archive is assigned a numbered file suffix. Files with the R81 extension are part 83 of the split archive (the first part is named .RAR, second part .R00, third part .R01, etc.).
To access the content of the .R81 file, you will need to have all the archive part files in the same folder and open the first file (with file extension RAR) with your compression tool.
How to open R81 files
We have identified four R81 openers that are compatible with this specific type of R81 file.
Programs that open Split WinRAR Archive (part 83) files
Last updated: February 24, 2023
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