I had a requirement where the customer wanted to make sure that the right user could only see the colour from the stock item assigned to them. Essentially using the Excel file for Row Level Security.
For the Row level security to work correctly it required the colour name to be an exact match.
For me to ensure that this would happen, I wanted to make sure I could get the data from my Power BI dataset, and then using the Excel data validation make sure that the user could either type in the value 100% correct or pick it from the drop-down list.
There are quite a few steps, but I can see business people being happy about the final outcome.