Based on similar naming conventions ( ...part07.rar ) found in search, these are typically used for sharing large assets, such as game data, mods, or server files. Steps to handle this file:
Right-click the first part ( .part01 ) and select "Extract Here" using your extraction tool. GTHMDODI2GB.part07.rar
If this is for a game, check the original forum or site where you found it for any necessary instructions or dependencies. Based on similar naming conventions (