.THEATER File

The theater file extension is associated with the iMovie a video editing tool for Apple Mac OS X (macOS) and Apple iOS operating systems.

The theater file stores graphics presentation with digital videos created in the iMovie. Also can be shared through iCloud.

How to relocate theater file:

Move iMovie Theater to new location.

Open Terminal Window.

Type: ln -s (new location directory)/iMovie\ Theater.theater ~/Movies/iMovie\ Theater.theater

Hit return

A theater file extension is related to the iMovie video editing software and used for its theater library files.

How to open:

Use iMovie to open *.thater files.

How to convert:

Probably can be converted to other formats.