File created by HP Digital Senders, which are used for scanning and sending documents; stores information entered by the user on the digital sender device LCD panel; may include a title, the scanner name, the number of pages, and other information.

HPS files can be read by HP Digital Sender Administrator Software, which is provided with HP Digital Sender purchases. NOTE: HP Digital Sender Administrator Software is discontinued and no longer available.

Game script used by HPL, a Frictional Games game engine that is used for first-person horror games such as Amnesia: The Dark Descent and Penumbra: Black Plague; saved in a plain text format and contains functions that define events that occur in a game map, such as doors slamming, scream sounds, or other horror events.

NOTE: HPS files can be edited by users to create custom storylines for HPL and HPL2 games.