When end users start the secure application, if no save was previously made, the secure workbook is directly opened without any prompt. With this option enabled, a welcome dialog box is shown instead, allowing users to start the secure workbook or load an existing save file:

 

This is useful only if, for instance, you provide your users with both the EXE file and an existing save file, or if you move the EXE to another computer and want to load an existing save file.