Everytime I try to open a file it appears the same incident report:
Cannot open the file
wrong application level
you catia revision is lower compare to you file.
Consider your catia is CATIA V5 R19, but if the file is CATIA V5 R20(higher version) means, you cannot open in CATIA V5 R19.
Please check the catia file revision.
Thank you for answering vinoth.
The problem was that during the instalation the demo mode began running. I just needed to disconnect it.