What is a celtx file and how do I open a celtx file?
CELTX is a project file created with Celtx, an all-in-one media pre-production software program. It includes project scheduling, screenplay development, and storyboard creation features; all data is stored in a database format within a single CELTX file.
Relevant celtx file links:How to open celtx file on Youtube
How to open celtx file on Wikipedia
How to open celtx file on Microsoft.com