Changing File Associations

Hi,

We are using Quickbooks 2010 in our office. For some reason, when we export a report as an slk and it is opened up in Excel 2011, the file shows up incorrectly - there are no values in any of the columns. It displayed correctly when we were using Excel 2008.

When I save the file in Excel 2011 and open it up with Excel 2008, it display's perfectly.

I have tried to change the file Association of the slk files from Excel 2011 to Excel 2008 but for some reason the file immediately reverts back to being associated with Excel 2011.

I have used the Get Info -> Change All method. I also downloaded RCDefaultApp and tried to change the file association there. It still reverted back to being associated with Excel 2011.

Is there a way to get around this problem besides uninstalling Excel 2011?

Thanks,
Eric