After exporting a Report from IFP to Excel (.xlsx format), if you try to Print Preview in Microsoft Excel 2010, you see the message "Print Preview is not available".
Unfortunately a third-party component of IFP caused the Print Preview in Excel 2010 files to not show the Print Preview.
In Excel, click File > Print to get to the Print Settings. Change any setting here e.g. the Orientation of the page from Landscape to Portrait. You will now be able to view the Print Preview as normal.