Easiest way to print hundreds of same letter with different addresses

Question

There is a long list of names and addresses in CSV format (could be converted to a different). I need to print a hundred of letters with some formatting like:

%address%

Dear %name%,

Blah-blah-blah

How can I make Word or any other software print these letters using data from the list?

Answer 1

It's called a mail merge.

You can use Excel as your data source, since you already have everything in a CSV.