I answered this in your duplicate thread so here is what I wrote there:
There are a couple ways to do this, but the easiest is to do something like:
Set the cell to Read as Hyperlink and use the format
<a href="http://www.google.com" target="_blank">This is my link</a>
Are you getting an error when trying to click the hyperlink?
What happens when you click it?
What is the exact formula for the cell?