Platonides (and others) offered comments like:
You could do [Excel to HTML] with
openoffice.org/libreoffice,
although I agree that getting all the dependencies right for running in the server is a
bit tedious.
You can also use Excel itself for that (eg. COM automation), as suggested by vitalif...
My team investigated several Excel-to-HTML solutions, including
openoffice.org, Excel
itself, a free converter on Google Code, etc. The clear winner was Aspose
(
www.aspose.com), running under Mono, for ease of automation with MediaWiki and quality of
results. Relatively expensive but it works great.
DanB