With your help I got here and I managed to make notes.adr usable for V7 Notes. Now isn't anymore the error message @ import .adr
It turned out not the size upset V7 but some of the IDs that were not in order. Notes from Trash had IDs not fit, emptied the Trash and worked.
Now i think i have all the notes imported, there is a difference of about 10 in minus, i don't know what they could be or how to find them as they are not taken into account by V7 Stats.
Sorry didn't receive a notification of your last comment, now i think i set it right.
have u selected allow file access in opera://extensions ?
These are what i have, all 3 unchecked:
Allow in private mode
Allow access to file URLs