So what you're looking for is generating a list of these to copy&paste into the tables file. Ignore the stuff before & after but just generate:
<value>You find a variety of coins but none of value.</value>
I don't think spaces matter in the XML (someone please correct me if this is wrong!) So you're looking for something like this
The trick is then splitting out into A1 value into two formats "1-20"... something like this might work for B1
In B1 should make it show the first part of the number. Whereas C1 would look like
and should display after the -.
Am I making sense? I don't know how excelly you are... and I am not 100% sure that MapTool isn't super picky about formatting the XML, but my guess is this will work.