Folder for templates
When upgrading from Office 2010 to 2013 or 2016, one’s own templates may disappear. This happens because Microsoft has moved the folder where the templates should be located.
The template folder in 2010 is below:
C: \ Users \ Username \ AppData \ Roaming \ Microsoft \ Templates
And the template folder in 2013 and 2016 is below:
C: \ Users \ Username \ Documents \ Custom Office Templates
If you want the templates where Office 2013 and 2016 are stored, you should move the templates to the new folder.