You can export as many persons in a gedcom file as you have added to Geni.
You have added 1288 profiles to Geni, then you can make an export of your tree from Geni with 1288 persons.
This gedcom file you can then import to any other other genealogical software that supports the gedcom format. I would recommend an offline genealogical software that is only on your own personal computer(s). From this software you can make backups and write several different reports that you can look at or edit in a texteditor.
From that software which should be
Hvis du åpner denne linken så vil du se hvor mange profiler du kan eksportere og hvilke 4 eksporteringsvalg du har: https://www.geni.com/gedcom