: Part 3 contains only a portion of the total data.

: Use WinRAR or 7-Zip to combine the parts once you have the full set.

: You must have all parts (Part 1, Part 2, etc.) to open it.

As a single .rar part, it cannot be reviewed as a standalone item. Here is what you need to know: File Context

: Files from unverified sources can contain malware or scripts.