How to replace a document?

I made a mind map with one file, but the file had an error. Half the page flew away. But I already made a mind map with an error file. Can’t I overlay the file with a new file?


You can search for past file versions in the history archive

Kind Regards,

Support Team

Oh sorry.
I used to translator.
So my words are not smooth.

  1. exist A file and B file
  2. I made Study mind map from A file
  3. But I want to change in study to B file from A file - every root -
    Is it impossible?
    Thank you.