If the system is set up to use Microsoft SQL Server Reporting Services Reports, and you have permission to use such reports, the system will present a warning message prompting you to select an output format before generating the report.
If enabled in the Preferences page, the Choose Report Format reminder (see capture below) will appear each time you attempt to run a report from a Print menu.

The Choose Report Format Warning Message as displayed.
If the warning message is not enabled in the Preferences page, the Choose Report Format reminder will not appear when attempting to run a report from a Print menu and the report will be created in the default format (PDF). However, even if the Report Format reminder is not set to display, you can still select alternative formats for the report by ALT-clicking (instead of clicking) the report and selecting the format of your choice.

Note: Disabling or enabling the checkbox in the Choose Report Format Warning Message above will enable or disable the corresponding Invitation to Choose Report Format checkbox in the Preferences page (see capture below).

1. Click the Invitation to Choose Report Format checkbox located in the Warning Messages section of the Preferences page.
   
2. Click Save ( ) when finished.