Files that contain the .usr file extension are most commonly associated with user database files. The USR files can store a variety of user database information. The exact information that is stored in a USR file will vary depending on the specific application that the USR file is associated with.
Popular applications that are known to use the .usr file extension for user database files include ERGO, FileMaker Pro, Corel PhotoPaint, Procomm Plus, Turbo C++, PerfectExpert and Pegasus Mail.
Try a universal file viewer
File.org aims to be the go-to resource for file type- and related software information. We spend countless hours researching various file formats and software that can open, convert, create or otherwise work with those files.
If you have additional information about the USR file format or software that uses files with the USR suffix, please do get in touch - we would love hearing from you.