To open an existing project, click on the folder icon 
in the command bar on the project page. MPX files and MPZ files can be opened.
–MPX is the file format for the newly developed Model Processor.
–MPZ is the file format for the Model Processor Classic.
Convert MPZ file
To use an MPZ file in the new Model Processor, select an MPZ file. The Import MPZ File dialog box opens. You can choose:
–Convert and open MPZ file
–Convert MPZ file, open, and save as MPX file
By checking the Rename MPZ file after conversion (mpz.bak) option, you can restore the MPZ file by removing the BAK extension.
