You need a file archiver that supports the .rar format. Popular free and paid options include: : The native tool for .rar files.

: Unpacks the files directly into your current folder.

: One of the parts was likely corrupted during download. You may need to redownload the specific part mentioned in the error message.

You do need to extract each part individually. The software is designed to automatically "stitch" them back together.

: Right-click on SPECIAL1151_PACK4.part1.rar . Always start with Part 1 , even though your question mentioned Part 2. Choose Extraction Method :