I had a similar problem with getting doc files read in the above software it was eventually solved by uninstalling and re installing. Now I have a similar problem with xls files from Office 2003-I cannot get them to open in 2010 office.
Here is what I have done to try
Control pannel>programs>default programs>set associations (Excel does not appear in the given dialogue box)>browse>Computer>windows7>program files(86x)>microsoft office>office14>Excel>open
When I click on open I would have expected the icon for excel to go into the given dialogue box so I can assign it to the xls files.but it does not go
Can the experts tell me how to get the Excel icon into the above dialogue box?