Right-click Part 1 and select "Extract Here." The software will automatically bridge the gap into Part 2 to finish the job. Musical Context
If you are looking for the creative "content" of what Bach wrote in this section: Bach_Well-Tempered_I.part2.rar
PDF scores of the masterpieces, possibly scholarly editions (like Henle) or historical manuscripts. Right-click Part 1 and select "Extract Here
Because this is a file, it is an "incomplete" fragment. To access the actual content, you typically need Part 1 (and any subsequent parts) located in the same folder. Once you have all parts, extracting Part 1 will automatically pull data from Part 2 to reconstruct the original files. Likely Contents Bach_Well-Tempered_I.part2.rar