When I run 

M-x org-export-icalendar-this-file

on a file, in the *Messages* buffer, it says:

Saving file /tmp/orgics3698Kdg...

Wrote /tmp/orgics3698Kdg

Saving file ~/file.ics...

Wrote ~/file.ics

Does the tmp file need to be created since one is not needed for other

exports?

Best wishes,

Enda