Hm, a week went by without a response.

Did anybody else try and had issues like this with Excel2Html?
A test-commandline could be something like "Excel2Html -f testaddresses.xlsx -t Excel2Html-all-template.html -o test.html"
Running the uncompiled .au3 script (assuming AutoIt3 is installed...) would give an accurate source-linenumber on any errors: "Excel2Html.au3 -f testad..."
Adding "-d " between Excel2Html and -f like: "Excel2Html -d -f testad..." writes some logging info to Excel2Html.log, that could be of interest if anything wonky happens.
Any results would be highly appreciated, as ofcourse it "works on my machine"...
