I would like to add SSI files to my site to make updating easier, however I cannot get them to work. I have changed my files to .shtml and i have inserted the code-
<!--#include file="test1.txt"-->

but still the file does not show up!

What have i forgotten to include? Or what I have gotten wrong?

Thanks in advanced for your help :)

does an error appear?
or does the coding appear on the page like text would?
or other?

did you check to see if your host supports ssi?

also, you need a space towards the end of the coding line like this...
<!--#include file="test1.txt" -->
after the second quotes there.