If your report bundle is designed to be exported to an Excel spreadsheet, here's some tips to make it work well for you:
Don't display the bundle title
It's better to add a document as a cover page
Optimise for Excel
Click Actions at the top, then Optimise for export to Excel
This will give you one sheet per report, rather than one per page
Set a unique title for each report in the bundle
For each report, choose More Options, then Edit Properties
If you haven't already done so, tick Change the report title in the bundle
Over type the Title as preferred