[cflsystems]

These mods probably just added new fields to existing tables and/or new tables. Neither will prevent an upgrade. You will be better off doing the database upgrade instead of trying to export/import. Not everything can be exported and/or imported. After the database upgrade you go through each table and delete the extra fields added for mods and tables as well. Just make sure you have backups before doing that. You can compare table fields with original XC tables from the distribution pack