A VWL file contains a word list created by Vuforia, an SDK used to create Augmented Reality (AR) apps for mobile devices. It stores English words saved in the Vuforia Word List (VWL) binary format. VWL files are used by Vuforia-developed apps to recognize printed words.

Vuforia includes a text recognition engine that uses the UTF-8 character encoding standard to recognize words. A VWL file comes default with the Vuforia SDK but it may be replaced or modified by a user. The default VWL file typically stores approximately 100,000 of the most used words but a user can create custom VWL files that store up to 10,000 words. NOTE: Vuforia is developed by PTC, which is a computer software and services company.