In my opinion, Crystal Reports (www.businessobjects.com) is a great program. It allows you to design, display and print reports made from virtually any data sources. You can smoothly merge information from any number of sources (E.g. networked databases, Excel spreadsheets, Access files, web sources, etc.)
All of the above assumes that you have the Crystal Reports software to design and publish your reports. Like many programs that have wide utility (E.g. MS Office, etc.) the cost of such software can be high if you have to pay for the software to be put on each computer in a company.
Crystal Ease software (www.surfinggeckosoftware.com) is one of the best Crystal Reports viewers available. It allows a user to refresh and output Crystal Reports without having to pay for a copy of Crystal Reports (list price of $495) for every user. While not free, Crystal Ease only costs $149 for an unlimited-user, enterprise license.
