Paul,
I copied a .xlr file written in works, renamed it to a .xls file, and it opened on my new machine by Excel 2010. Is there a converter that can be downloaded and installed to allow my Office 2010 running Windows 7 Professional to automatically do the conversion and open the files created from Works? If so, is there a risk in corrupting my new Office software? I did not get the original software DVD from Dell when I purchased the machine.