If you attempt to extract the files and receive a "CRC error" or "unexpected end of archive," it usually means one of the parts (like part3 ) is corrupted or missing [1]. To help you further with this file, I need to know: Did you download this yourself , or did you receive it?
You cannot open this file in isolation. You must have all parts (part1, part2, part3... part20) in the same folder on your computer. Using a program like WinRAR or 7-Zip , you only need to right-click on the first part ( 0001-0020.part1.rar or 0001-0020.part01.rar ) and select "Extract Here." The software will automatically read the subsequent parts—including part 3—to rebuild the original file [1]. Safety and Context 0001-0020.part3.rar
Here is an informative look into what that file represents and how it is used. The Anatomy of "0001-0020.part3.rar" If you attempt to extract the files and
RAR files are often used to distribute software or media. If you downloaded this from an untrusted source, it could contain malicious software. Always scan multi-part archives with updated antivirus software before extracting them [2]. You must have all parts (part1, part2, part3
Are you getting a specific when trying to open it? Do you have all 20 parts downloaded?
This file is the third installment of a large collection that has been split into smaller, manageable chunks (likely 20 parts total, based on the 0001-0020 naming convention) [1].