Win7 system open excel prompt "no trusted certificate with additional digital signature" how to deal with

Cause Analysis: The macro security level of the Excel spreadsheet is set to a high level and there is no trusted certificate with a digital signature attached, so these macros are disabled.

Solution:

1. Double-click to open the excel program in win7, click on the tool —— macro in the upper window;

2, after the emergence In the settings window, switch to the “Security Level” tab, set the level to low, and click OK to save the settings.

The above explanation of win7 system to open excel prompts "no trusted certificate with digital signature", if the next time you operate excel, the same situation, you can easily solve.