Part_4.7z ●

: Multi-part archives often require a password. If prompted, the password applies to the entire set, not just one part.

Because it is a "split" archive, you cannot open it individually to access its contents. You must have all the other parts (e.g., Part_1, Part_2, Part_3) in the same folder to extract the data. How to Open Part_4.7z Part_4.7z

is a specific file name that typically indicates it is the fourth segment of a larger, multi-part compressed archive created with 7-Zip . : Multi-part archives often require a password