Large files (like high-definition videos or software installers) are often too big to send in one piece.
: Older naming schemes often use .rar for the first file, followed by .r00 , .r01 , etc.. Modern schemes typically use .part01.rar , .part02.rar , and so on. 052rar
: Ensure you have every file from the first ( .r00 or .part01.rar ) to the last. followed by .r00