I pulled down the .xlst file (is it xls1.xlst or xsl1.xlst? I tried renaming with the same result).
I did the Windows R and went to the directory with the ps1 and xlst file (and the zip file) - [I grew up in DOS - boy its been awhile since i had to move through directories like that!].
I got a big scrawl of errors. See the linked text file for what came out
Text file with errors