The Model>Input menu option allows the user to select/browse for a .pre format input file and load that into the User Interface. One the use selects the proper file a progress bar should appear in the lower right-hand corner and give the user an idea of how much of the .pre file has yet to execute.(Note: The progress bar shows Current Line/file length. This should not be used to estimate total time left because command processing speeds vary) . Once finished the user should get a message that loading has completed and the user may continue using the User Interface as desired.

The *.pre file is a batch of SASSI-Prep/ ACS-SASSI User Interface commands so all of the commands will be loaded and executed on the current model. Every .pre file has the ability to modify the current model. Any command that is valid in the User Interface can be used in a .pre file with no exception. Any .pre file written by the WRITE command is compatible with both SASSI-Prep and the User Interface. However, there are new commands in the User Interface that are not supported in Prep and the User Interface is not fully backwards compatible. Therefore any user written .pre file may contain commands that are not recognized in one of the programs. If this happens both programs will issue a statement of “<X> Command not found.“ where <X> is the invalid command name. The .pre will continue to be processed if any error occurs and subsequent command will only be affected if they required the command that was not recognized for data.