Export events + alarms from 1.6.003 to 17.1.003

[Fredouille]

Hello,
old server Ubuntu 14.04 LTS runing Egroupware community 1.6.003.
new server Ubuntu 18.04 LTS runing Egroupware community 17.1.003.

Is it possible to recover all events + alarms of a user from old version to new version ?
If yes, how to do this ?

Thank’s.
Regards.
Fred.