How to specify the file type (language extension) of a new text file?

In VS Code, File-New Text File opens a new tab with the message “Select a language, or fill with a template, or…” which allows me to specify that I’m writing new Julia code, which allows the IDE to be helpful in all the usual ways.

In Cursor, File-New Text File opens a tab with the message “Press Control K to generate code…” and what I type is not recognized as Julia code unless I save the file with a .jl extension.

Can I either 1) change the new text file message to be the same as VS Code or 2) change a setting so that Julia is assumed unless I save the new file as .py or something else?

If you press cmd+shift+p and select “Change Language Mode”, you’ll be able to pick which language you want!

Thanks, Eric.