First of all thank you for your answer!
Here is the link to the page where I uploaded my videos.
https://tkmwerbung.editorx.io/website/blank-8-1-1-2-1-1-1-1-2-1-1-1
on the Left is the Video uploadet in Editor x and on the right is the video I have not yet uploaded to editor x.
I hope you can see the difference.
(Under this link are two other videos with other resolutions. Where the quality is not good anyway.)
What file types do you mean? Or which would go to upload in wix?
Looking forward to your answer.
Kind regrads
Vanessa