If the parts are named sequentially (like .part01 , .part02 , etc.), you can usually reassemble them by placing all parts in the same directory and then extracting the first part with your archive tool. The tool should recognize the sequence and allow you to extract the entire archive.
"Part seven," the voice rumbled. "The final fragment." Resident Evil - Village -FitGirl Repack-.part07...
You have been here before. You know the ritual. If the parts are named sequentially (like