Sharing Templates xltx, dotx via MS Teams and Sharepoint

Hi Robert - this is an old question to be responding to but I am wondering if you ever found a way to do this? I think the best option here is to save files normally, not as a template, but then restrict the access to the folder containing them to be read only .. that way, a team member will open the file, and be forced to choose "Save As" to make their own copy while the source file remains unaltered, acting as a template of sorts.