Because this looks like a technical file identifier, a post about it should bridge the gap between the "code-heavy" filename and the content it likely contains. Here are three options depending on where you plan to post:
Option 2: The "Help/Troubleshooting" Style (Best for Reddit or Discord)
📁The latest set in the LoLan series is now available. This archive includes the full P004 collection in high resolution. File Name: _p_jb_n_LoLan_Ol-a_P004.rar Format: RAR Archive