Rzvsis_ivan.part1.rar -

The software will automatically find the other parts and combine them into the original file or folder. If your file is showing up as a Text Document

Ensure you have every part of the set in one location. RzVsis_Ivan.part1.rar

rar a -v500m RzVsis_Ivan.part1.rar [folder_to_compress] (This splits the archive into 500MB parts). The software will automatically find the other parts

You are looking for the text-based command to create a multipart archive with that specific name. RzVsis_Ivan.part1.rar