Really, really cool stuff from Microsoft: Mail Protection Reports for Office 365.
Microsoft Office 365 Excel Plugin for Exchange Online Reporting
This reporting workbook provides you with a detailed view into the email protection reports that are available in the Office 365 Reporting dashboard. This workbook is available to all Exchange Online and Exchange Online Protection customers. This workbook is connected to the reporting web service. After you have installed it, you can refresh the data from within the workbook at any time. You can customize this workbook to suit your needs and use the various Excel features to interact with the data. You can also drill through to the underlying message-level metadata. Download the appropriate file and follow the instructions to install the Excel workbook on your computer. Note: An updated version of this workbook will be available for Excel 2013 soon. Once this is release the Excel 2010 version will no longer be supported.
Supported operating systems: Windows 7, Windows 8 Release Preview, Windows Server 2008
Microsoft Office Excel 2010
Microsoft SQL Server 2012 PowerPivot for Microsoft Excel 2010
Microsoft .NET Framework 4.5
Microsoft Online Services Sign-In Assistant (for Exchange Online Protection customers only)
An Office 365 subscription that contains Exchange Online or Exchange Online Protection
Email address you use to sign in to Office 365