Are you getting a when you try to extract that file?
: You only need to right-click on Part 01 and select "Extract Here." The software (like WinRAR or 7-Zip) will automatically pull data from Part 02, Part 03, and eventually your Part 06 to rebuild the full installer. Common Issues with Part 06 Just_Cause_4_Complete_Edition-Razor1911.part06.rar
: If the archive is password-protected, it will often fail at a specific part if the password was entered incorrectly or if the archive header is damaged. Standard Installation Steps Are you getting a when you try to extract that file