R55 File Extension
Have a problem opening a .R55 file? We collect information about file formats and can explain what R55 files are. Additionally we recommend software suitable for opening or converting such files.
Have a problem opening a .R55 file? We collect information about file formats and can explain what R55 files are. Additionally we recommend software suitable for opening or converting such files.
One of a family of indexed filename extensions (.r00–.r99), the extension .r55 denotes the volume of a multipart RAR/WinRAR compressed archive. RAR refers both to the data compression algorithm and its reference implementation (E.Roshal), while WinRAR is a Microsoft Windows GUI version of RAR. Like other archivers, RAR/WinRAR can create and process multipart (split) archives consisting of several volumes. The ".r00–.r99" naming scheme is the older one; the newer ".partNNN.rar" pattern is the default in all recent versions of WinRAR.
The .r55 file is the fifty-seventh part of a multipart RAR archive created along the 'older' naming pattern. The first part always retains the extension .rar (or .exe, if self-extracting). Split RAR volumes (files such as .r55 or .part055.rar) are recognized and properly handled by a host of RAR-compatible archive managers.
If a split archive contains many relatively small files, it may be possible to partially extract data from a single split-volume file such as .r55. For successful extraction of all the data, all of the archive's parts are required.