input

Sets the path to the MS Excel template. You can use the following input formats: *.xlsx, *.xlsb or *.xlsm

required: yes but no in "alertmode" 

The template is included in App.
input: content:///ExecutiveDashboard.xlsx

Use content library
content://[CONTENTLIBARYNAME]/ExecutiveDashboard.xlsm

Use lib folder - The template is stored in the filesystem.
lib://[LIBFOLDER]/ExecutiveDashboard.xlsb