An RHR file contains a script created by Script Rehearser, an Android app used to rehearse and memorize lines from a script. It contains a script, which may include scenes, actors, dialogue, cues, stage directions, and notes. RHR files are typically used by actors, public speakers, and students.

RHR files are created when a user saves a script in Script Rehearser. Scripts can be configured by a user to fit certain learning methods, such as "listen along," "wait for me," "repeat for confirmation," and "run through." RHR files are meant to be opened by Script Rehearser. But they can also be opened by text editors since RHR files are saved in an XML format.