I tried to repeat the process and this time this did not occur, I dont know why but before my text was with characters more or less like this: https://imgur.com/gcX3nnq Thanks for the tip, I'm downloading this software right now.
I'm testing the Evernote functions before joining completely, and one of the things I need is an offline backup for security (years ago I used software like this I lost everything when the company responsible simply closed and did not allow access to my files). So I quickly found a problem that is breaking text in txt files (replacing letters with strange symbols, removing space etc). Is it possible to solve this problem? Also, is Evernote really safe for who has hundreds of important files?