The software will automatically detect the other parts and extract the combined contents.
This is the first file in a split archive series (likely Hagme2907.part02.rar , Hagme2907.part03.rar , etc.). This method is used to break large files into smaller, more manageable pieces for sharing or downloading. Hagme2907.part01.rar
Based on my research, the file is a multi-part RAR archive. The software will automatically detect the other parts