Poklegarc-nswtch--base--xci-ziperto.part2.rar

This usually means Part 2 (or another part) was corrupted during download. Try re-downloading that specific part.

Here’s what that filename tells us:

refers to a specific digital archive used for distributing a Nintendo Switch game. It is a multi-part RAR archive POKLEGARC-NSwTcH--BASE--XCI-Ziperto.part2.rar

Do you have of the archive ready to go, or are you having trouble with a specific extraction error ? This usually means Part 2 (or another part)