Just a quick note - the XLSM file is just a workflow tool. Changing it shouldn't actually make any difference to the game. Instead, the macros in all of those XLSM files are designed to generate the actual TXT or LSX files that the game will use. If you don't have Excel or just prefer to use another tool (like Notepad++), you can still make the changes needed. Just need to know what files the XLSM macros do actually output.