Excel Macro Enabled Template - Saves as .XLSX by default

Good Afternoon All,

quick question

I have created some macro enabled templates in Excel.
When I open the template and try to save it it defaults to .xlsx instead of .xlsm

Macros are enabled in trust center
I have also added the templates folder to the trusted sites.

Is there any reason why it will not default to .xlsm if the template is already recognised as a macro template?

Hope this makes sense

Best,

Marcos