The archive is useless without the other parts; it cannot be played or partially extracted.
Files with this naming convention are frequently hosted on unofficial platforms like 1337x or EXT Torrents. If you did not intentionally download this, be aware of the following: Fatma.BDRemux.part05.rar
BDRemux files for a TV season or full-length movie typically range from 25GB to 60GB . If this is one of many parts, each .rar is likely between 1GB and 5GB. The archive is useless without the other parts;
Check the file hash against known databases if available on the source site. Fatma.BDRemux.part05.rar
If you are seeing any when trying to open it?