Capital IQ provides users with a Microsoft Office plugin that must be downloaded and installed on the user's personal computer. The plugin contains add-ins for Excel, Word, & PowerPoint.
Note! The plugin is not compatible with Office 365. The MS Office applications must be installed software on a user's personal computer.

Try or confirm the following if you're unable to login/connect to Capital IQ via the Excel plugin.
If you still can't connect after trying the above, please email as many details of the issue, including a full-screen screenshot of any error messages to reference-librarians@fuqua.duke.edu.