Merge data in one row of excel into a word template

hello,
I am trying to sort it so i can select a row of data from my spreadsheet (the number of rows will vary and is being added to regularly), and fill the word template. i have labelled all the data-points but i am new to mail merge and can't find any good explanations on how to use it for anything but address labels. there are lots of them but not much for what i am after. or i am not looking in the right place.
i need to leave writing and formatting on the template but will in certain data points within the text, and then display a table at the end.
I have attached an example of the kind of thing i am trying to do. any help you can give me would be greatly appreciated!
Cheers,