When you see a file ending in .part10.rar , it indicates that the original data was too large for a single transfer. It has been split into multiple "volumes." To successfully access the content:

: You cannot extract part10 on its own. You must download every single segment (from part01 through the final part) into the same folder.

: Archive files are a common vector for Trojans. Always run a scan with updated antivirus software before opening the extracted contents.