I am a Desktop user (10.5) trying to find the best way to use 3 separate files as data sources and bring them into a single view. I'd like to avoid any extra formatting of the data. I was able to come up with the view below, but is there a better way?
Instead of having the content in 3 separate files, please put them in a single Excel workbook with 3 separate sheets. This will enable you to do a Union of them in Tableau and have it as a single data source and get you your desired result.