I use CHAR(10) in Excel to prepare the Input. I do prepare the Multiline Text correctly in Excel. Now, I just need to make the Default Node Size Correctly.
I resized some of the nodes to keep all the Text inside the Node Box and then using your Layout > Edgefit tEdgeo size gives me the right width. Just that the Hight is wrong.
Here's a link to a file that shows the need for the different Height: https://www.dropbox.com/s/7ig351n9f1v1p0v/yEd%20Import%20Node%20hieght%20challenge.png?dl=0
My Belief is that even if the Height is too Big for many Items, the Edges will be correct AND the diagram will look better than this one: https://www.dropbox.com/s/oazreh7zzecbgg1/yEd%20Import%20Node%20hieght%20challenge%20FULL.png?dl=0
"The formal representations used in this International
Standard are indented and numbered
with a full stop (period) (.) for generic relations and
numbered with a dash (-) for partitive relations, …"
for the Text to be displayed in the Node.
I resized some Nodes to get al the Text inside the Node Box and then, tried your Layout > Edge routing > Orthogonal Idea. But it does NOT Reposition the Nodes.
So, I do need to Start with the Correct Size Node Box!