sharing projects and want to share templates
Here's where you can find your template files:
You could probably copy/paste those from one directory to another and they'll work.
Your player templates are stored in your .PPTA file, so when collaborating with other authors on a project, first make sure you’ve published your project at least once, then simply send the source .PPT or .PPTX file and the associated .PPTA file to the other authors. When others open the project, they’ll have access to the custom player template used in the project.