This really looks quite rudimentary and I hope it is not already covered in another topic.
I've read the The Gallery: Composer File Type for Multiple Output Options and replicated the very easy steps.
However the interface I get does not involve the user-friendly file-format icons. Instead it shows a drop-down menu for file formats.

How can our private gallery show it as in the abovementioned thread? (image shown below)

Bonus question: If my output is just a single excel, can I somehow skip the file-format drop-down selection so that user clicks once to download the report?
Thank you very much!
Chris