Hi Yacine,
Sorry it took me so long to get back to this... haha.
So when trying to import your PowerQuery.xlsx into Visio, I get "Unable to read names from your file" - any ideas? (I have a screenshot, but I can't figure out how to attach it on this forum).
Separately, I created a Power Query table from my real data, and when I imported that file into Visio it used the derived table, but did not ask me which table I wanted to use. This breaks the idea of the use case of having a few derived tables in the same file and being able to import any of them.
Thanks for your help so far!
David