Price comparison table

I need a price comparison table that has multiple stores and products presented but cant find one – all I see is tables with few products and single company.
I’m looking for something like this:
http://www.linssit.net/piilolinssit-hintavertailu.php

Is there a plugin that could help achieve something like this? Ideally working with excel upload or autocatic update via feed.

Or a theme that provides comparison table?

Way smaller scale than in example case though and as simple as possible.