Hi @a_w, thanks for your question! If you feel the response you got has sufficiently answered your question, be sure to give it a checkmark. This will help others find the solution in the future. Thanks!
I have also added the web-app tag and changed your post’s title from “Can’t load .csl file with typst.app” to “Why can’t I load my .csl file with typst.app like shown in the documentation?” as the question guidelines recommend this:
Good titles are questions you would ask your friend about Typst.