using bootstrap icons library

Hi,
How may I use bootstrap 5 icons library?
Whether I need to edit template files?Thanks

It actually depends on which location did you want to use that Bootstrap Icons.

Hi,
I want to use them in Custom File. e.g. inside buttons or in headings
may I ask you post an example in this case?!
Thanks

Then you may start by reading this documentation. You may post your code for more discussion.