Document Template (.DOCM) , CRM, Open XML to read form fields data, Dynamic CRM, C#

Can we set or get value from .docm template using C# Open XML, Actually, The requirement is we have template with extension .docm with including form fields and some layout, User has ability to update the document and upload it in CRM using ribbon button and when user uploaded the document then the data should get updated in CRM with OpenXML in the same way, we have button called Create Template, when customer click on it, we need to read the data from CRM and auto populate it in document.I need to achieve this using OpenXML, C#. It will be very thankful, if you share suggestions or help