Many times when you (or I) have created a QlikView Model file. You didn't put a TAG in your TAB to remind WHAT IT IS FOR your Model.
Well ...it is happen to my...and this is my solution... a script to put filename in a TextBox and as Propertie name of the main tab.
The Script
//Assign LABELS and TAB NAME with the filename
LET vOnlyName = left('$(vAppName)', index('$(vAppName)','.')-1);
SET vMODEL_NAME = $(vOnlyName);
In the objects put:
=vMODEL_NAME
Save the file and Reload!!