I haven't exported anything yet as I had been using EN as my "place to dump everything and anything." So it is messy to begin with. I believe Notion has an export from EN function. It is on my to try list. Notion has a learning curve, but once you figure out the key basics and how to use the database (attach files, add tags to individual "entries"), oh boy 😍, it is beautiful and doing something that I didn't know I wanted.
What is your EN file like? Text + attachment? (so I can add to that my test list)