To extract the content, you must have all parts ( .part01 through the final part) in the same directory [1].
With more context, I can identify the specific software or data set. sc23767-C2R.part07.rar
It could be a partitioned backup file or a large dataset. To get a more specific write-up, could you tell me: Where did you download this file from? What were you expecting to find inside? To extract the content, you must have all parts (