Apps: Calendar Tasks ToDo List

Simple Calendar (FOSS)

How to import/export?

.ics file CalDAV: It requires a syncing app as aCalDAV/DAVdroid and an account in a Internet server (like fruux.com)

DejaOffice

How to import?

paste/save modified file (companionlink2015-xx-xx).db to device ./android/clusb/ rename or delete companionlink.db (Dejaoffice must be closed) rename backup file (companionlink2015-xx-xx).db to companionlink.db

Tasks org.tasks(FOSS)

How to import/export?

Cannot export/share to.ics file CalDAV:requires an account in a Internet server (like fruux.com)