If the model has not already saved, select File|Save. In the Save dialog box, there is a checkbox in the lower left labeled Create archive. If that check box is checked, ModelMuse will create an archive of your model containing the ModelMuse file, any files imported into your model, the model input and output files, and the MODFLOW executable. The archive will be a zip file. The name of the archive will be the name of the ModelMuse file plus the date. Such archives can be helpful if it is necessary to examine a past version of your model. To include additional files in the archive, select File|Files to Archive. Then click the Add files button to select additional files to include in the archive.