LOPYZYZKVOYJUTK with ROT + 6 = FIRSTSTEPISDONE
if we switch letters 3&4 to "correct it" like correcting the CRYPTO spelling = FISRTSTEPISDONE
LOYXZYZKVOYJUTK (<- letters switched), decrypted with +12 (the number) = ZCMLNMNYJCMXIHY
None of the three unpacks the archive
Did you try small letters?
hahahah Nice one.
PWD to unpack the archive is: fisrtstepisdone