martinibuster - 5:30 pm on Sep 28, 2011 (gmt 0)

In the past I have noticed some companies spamming links to online spreadsheets then linking out to their sites from the spreadsheet. I don't know if it still works, but it seemed to be working back then. It's not a widespread practice (at this time)...

The contents are most definitely read. You can search for excel documents in Advanced Search mode.