It is the 8th part of a multipart RAR archive, likely belonging to a larger collection ( MNFTS01WEB18 ).
Extraction requires using utility software such as WinRAR or 7-Zip , ensuring all parts are named correctly and located together. MNFTS01WEB18.part08.rar
What (e.g., software, document, video) were you expecting? It is the 8th part of a multipart