Think-cell is an essential tool for modern business communication. Don't let a simple expiration date derail your next big presentation. Take control of your license management today, and keep those charts editable forever.

Check that you have write permissions for the think-cell user profile folder ( %APPDATA%\think-cell

To solve the problem permanently, you need to identify the type of license you are using. The "expired" message can stem from five distinct scenarios.

Regardless of the cause, the result is the same: the "think-cell" group in your PowerPoint ribbon will likely disappear, and any existing think-cell charts in your slides will convert to static PowerPoint shapes or images, losing their data links.

When the error appears, think-cell is simply enforcing the expiration date encoded in that key. It is not a bug; it is a feature of the licensing model.