Archive database tables

Hi,
I realized that my DB size is growing and found many old mamoto tables:

_matomo_archive_blob_20nn_nn
_matomo_archive_numeric_20nn_nn

as old as 5 years but I couldn’t find an archive option.

Is there a way to archive this data out of the database?

Would it be ok to delete the tables older than a year? or are there references to then that might cause inconsistencies?

Thanks a lot in advance!!