Office 2007 files will not open in Office 2010

Recently installed Office 2010 (32 bit becuz it was recommended to do so my MS) and now when I send an Office 2007 file to that PC (both PCs are Win 7 64 it) it tries to open the file in Windows Media!!

What the heck am I doing wrong? I'm beginning to think I should not have purchased Office 2010 Pro and stayed with the Office 2007 on all my machines.

Any help would be greatly appreciated.

That is weird.
Could you please describe step by step how you are sending the file to another PC.
Also, please provide more details on what type of the file that is. And if you create a similar file on recipient PC, will it be opened in Windows Media as well?

Neutron16,
I made the files in Excel 2007 and saved as a workbook, xlsx file format. It was then emailed. I also tried and saved a file on the machine where I had just loaded the new Office Pro 2010 and it did the same thing. It's almost like it does not recognize or associate the file type.
I'm wondering if I should do a 'repair' or go look to see what the file associations are. The last version of Excel (which I uninstalled) he had on the PC was Excel 95.

Both machines, mine which I sent from, are Win 7 64 bit and both have Office installed, mine is 2007 Pro and his is 2010 Pro (32 bit). Hope this is enough info.

OH, his software was a downloaded (then all the updates done) of the trial version with a purchased Product Key.

Thank much for any help you may be able to provide.
Oops

It sounds like that paticular file extension, is set to open in windows media player by default. We can change this by forcing it to open wth Excel

Find the Excel file - Right click on it: Select Open with:


If you see Excel as an option, in the main Programs list, Then highlight it - Then press ok.




If you do not see it in the list, Click Browse: You will need to browse your programs directory to point it to Excel.
It should look somthing like this

Excellent. Glad it's now sorted.