Knowing the "MW" or "FSTER" context would help me write a more tailored description for you.
This file name looks like a specific segment of a larger multi-part archive. To help you put together a post, I need a little more context on where you're posting (e.g., a forum, a technical log, or a file-sharing site) and what the file actually is. Generally, a post for a specific RAR part includes: FSTER16026-MW.part08.rar Total Parts: (e.g., Part 8 of 10) Status: (e.g., Uploaded, Fixed, or Mirror link) Checksum/Hash: (Optional, for verification) FSTER16026-MW.part08.rar