Today AccountingWeb published a feature "Is a paperless office right for you? [2]"
The article suggests that going paperless might not be right for all entities due to costs and resources, but it still may be beneficial to go "semi-paperless". The Hyperlink connection in Excel is essential to going semi-paperless.
The Hyperlink is found under the insert tab.

Follow the call-outs in the following diagram to link a cell in an open spreadsheet to another file.
The hyperlink will appear with the following cell style:
X:\monthly close 09\05\15100 QLS 09 05.pdf
I have essentially taken the entire accounts receivable process paperless. Most of our deposits go into a lockbox. I can access the lockbox via the internet, and download PDF files that contain a copy of the check and the remittance advice which provides the invoice detail for the payment. Then I download the summary into an Excel file and add a column to link the PDF detail.
Now I have the detail to enter the cash payment into the AR system, and access is just a click away in case a question from the customer comes up at a later date.
There is nothing to get hyper about when going paperless in Excel.
Links:
[1] http://www.accountingweb.com/blogs/accountingweb/captain-excel
[2] http://www.accountingweb.com/cgi-bin/item.cgi?id=107591&d=883&h=884&f=882&dateformat=%o %B %Y
[3] http://www.accountingweb-cgi.com/editorial/excel052609/2.jpg
[4] http://www.accountingweb-cgi.com/editorial/excel052609/3.jpg
[5] http://www.accountingweb-cgi.com/editorial/excel052609/4.jpg