Accepting IBM's publishing certificate
In IBM® Planning Analytics for Microsoft Excel, you may receive a security warning. This is because IBM has recently renewed it's publishing certificate.
The following image shows the security warning in IBM Planning Analytics for Microsoft Excel:

Clicking the Options in the security warning displays the following alert:

To remove the security warning, you must accept the new publishing certificate.
- Right-click on the IBM Planning Analytics for Microsoft Excel xll file, and click Properties.
- Click Digital Signiatures.
- In the Name of signer column in the signature list, click International Business Machines Corporation.
- Click View Certificate.
- Click Install Certificate.