Read,write and create word document with list data

Hi,

My requirement is that I have a custom list called List1 and which has a 4 (suppose XName, location, phone, email)columns and also have a Template document(.dot). If I click on save button , new document has to create from the Template document(.dot) and should modify the content depends on list columns.

For that I need to read the document , find out the text where XName , location,,phone, email and replace with the list item data(user entered data). 

Can anybody please refer links for read,write and create word document?

Thanks in advance.