merge – Perform mail merges in LaTeX
The package (a style option of the LaTeX 2.09 letter style) reads a file of addresses, and then generates a letter for each such address, using the body of the document.
Maybe you are interested in the following packages as well.
- mailmerge: Repeating text field substitution
- schedule209: Typeset schedules
- vita209: A Curriculum Vitae style
- add-wes: A "book" style for Addison-Wesley house style