iSpring Suite 11 Adding Content to Courses Inserting a Training Video Closed Captions in iSpring Cam Pro Current: How to Import a File with Captions in iSpring Cam Pro How to Import a File with Captions in iSpring Cam Pro Click on the audio or video track so the Import (.vtt) option will become clickable on the toolbar.Click on Import (.vtt) and select where you would like to import the captions.Select a .vtt file and click on Open. To learn how to create a .vtt file, read the Creating a Caption File article. Great! You’ve added the captions. ×