It looks like you've provided a string of text that resembles a cipher or a coded message:

Download- mnywkt amwrt tswr sylft labst bshkyr b...

m (13) to d (4): 13 → 4 is -9 or +17. n (14) to o (15): +1. Inconsistent. So not a single ROT for whole word unless it's a Vigenère cipher. Sometimes mnywkt if you type one key to the left on QWERTY: m → n? No. Let's try one key to the right on QWERTY: