To create a single, usable piece from a multi-part RAR archive like EMP6_2.part18.rar , you must have (part01 through part18, etc.) in the same folder and use archive software to extract them. Here is how to extract and create the final, single file:
Right-click only the first file ( ...part01.rar or just the first .rar file in the set). Do not select all of them. EMP6_2.part18.rar
The software will automatically read all subsequent parts ( .part02 , .part03 , etc.) and assemble them into a single, complete file. To create a single, usable piece from a