: If the part is exactly 500MB, 1GB, or 2GB, it's a standard split archive.
Since the name itself doesn't reveal the content, you can try these steps to find its "features": 3985ir95m86n8tr848485-part1-rar
: If you have the file, open it with a compression tool. Often, there is a README.txt or file_id.diz inside that describes the software or content. : If the part is exactly 500MB, 1GB,