This problem is caused by a bug in Microsoft Office Excel 2003 and later.
It is possible to recreate this problem without think-cell:
- Open PowerPoint.
- Open Excel and enter some numbers into cells A1 to A5.
- Select the cells A1 to A5.
- Copy the selection.
- Paste the selection as a linked Microsoft Excel Worksheet Object:
Home tab of the ribbon, go to
Microsoft Excel Worksheet Object and
Back in Excel, apply conditional formatting to one of the cells A1 to A5. Use a condition that makes the cell color change in Excel.
Result: The embedded worksheet in PowerPoint does not update its cell color.
We have reported this problem to Microsoft.
If your company has a Microsoft Office Support contract and you want to contact Microsoft to ask for a fix, you may refer to Microsoft case number REG:114012811137516.