Hello out there

A couple of weeks ago, i sold my Asus PC and bought a Macbook Pro. I am very satisfied about it, but one thing is annoying me. I had a lot of notes in OneNote on my Asus PC, because I'm a student, and those notes are apparently not able to transfer directly to my mac. Later on i found this program Outline, which is a program very similar to OneNote, but created for Mac users. I bought it, and was told that it was simple to transfer my OneNote notes into Outline, and it would automatically change them into Outline documents, and it thats it. After that i was supposed to have all my old notes from OneNote in Outline. But unfortunately, i can tell that it is not the situation for me right now..
Anyone who is able to help me?

- By Mikkel Damholm