R64 File Extension
Have a problem opening a .R64 file? We collect information about file formats and can explain what R64 files are. Additionally we recommend software suitable for opening or converting such files.
What is the .R64 file type?
Indexed filename extensions like .r64 are associated with the Multi-Part RAR/WinRAR Archive Volume (.r00–.r99) file type and the RAR archive format. RAR is a proprietary data compression algorithm invented by E.Roshal and its reference implementation (a CLI tool), while WinRAR is a full-featured paid archive manager for Microsoft Windows. A multi-part RAR/WinRAR archive consists of multiple parts called volumes that can be more reliably transmitted over networks and verified for data integrity.
A file with the extension .r64 is the sixty-sixth volume of a supposedly large multi-part RAR/WinRAR archive. The index count always starts with zero (.r00), and the first volume always receives the standard .rar extension. Since each volume like .r64 stores only a portion of the archive's data, full retrieval of data from a multi-part archive requires availability of all its parts. Besides RAR and WinRAR, multi-part RAR/WinRAR archives can be opened and processed by many other archive managers.
The newer naming scheme for RAR/WinRAR archive volumes involves the use of the standard extension (.rar) preceded by the volume's index (e.g., "filename.part2.rar").
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