If the manager refuses to accept your file path, try creating a dummy folder structure. Move your game files or create a path that includes a folder named "steam" (e.g., .../Games/steam/Borderlands 2/ ). Many users find that simply having that string in the directory allows BLCMM to "validate" the file.
This tool is particularly effective for users who experience issues with the Epic Games Store version of Borderlands, as BLCMM often fails to hex-edit that version properly. blcmm invalid file selected
BLCMM is designed to open .blcm (BLCMM project files) or .txt (raw patch files). It cannot open .zip , .rar , or .exe files directly as mods. If the manager refuses to accept your file