Following Video is helpful for creating a Model wih Object from an Excel.
Mass import of objects and their attributes | ARIS BPM Community
Unfortunately its not shown in the video how to create the connections between two objecttypes.
Is a video online available or can somebody tell me how to create the connections?
Thx
The following Excel view allows you to create multiple objects and edges between objects.
At first you need to define in the excel tabs the connections / edgetype (Mapping_Cxn), objecttype (Mapping_Obj), modeltype (Mapping_Obj), symboltype (Mapping_Sym)
The next step is to list all your Objects with the predefined symboltype and objecttype. e.g.: 
In the Model_Structure tab, the structure is as follows:
In this example, an edge is created between "Buchungsposten" and "Beitrag" .
The report "Daten in Excel-Format importieren" creates the Model with the Name "ERM Model Test" and the Object automatically.
The following Excel view allows you to create multiple objects and edges between objects.
At first you need to define in the excel tabs the connections / edgetype (Mapping_Cxn), objecttype (Mapping_Obj), modeltype (Mapping_Obj), symboltype (Mapping_Sym)
The next step is to list all your Objects with the predefined symboltype and objecttype. e.g.:
In the Model_Structure tab, the structure is as follows:
In this example, an edge is created between "Buchungsposten" and "Beitrag" .
The report "Daten in Excel-Format importieren" creates the Model with the Name "ERM Model Test" and the Object automatically.