Create document letter for Republic Day Flag hoisting to all the employees using mail marge

In LibreOffice , use mail merge feature to create invitation letter for Republic Day Flag hoisting to all the employees in the organization. (a) Create your own Address List which will contain First name, Last name, Designation, Department. (b) Content of the main body of email should describe the time, date and venue of the parade. (c) All documents need to be sent through Email.