Working with PTC Mathcad Prime > Templates > About Templates
  
About Templates
With templates, you can create worksheet documents that conform to your company’s documentation standards. A PTC Mathcad template is a worksheet file with the .mctx file extension. It is identical in content and form to a .mcdx worksheet file.
You can perform the following actions:
Use an existing template to create a new worksheet.
Create a new template.
Save a worksheet as a template.
Maintain a private collection of templates under the My Templates folder.
Share templates with colleagues by placing them in the Shared Templates folder.
Utilize templates from the Default Templates folder.