Excel is an indispensable part of our common office, usually we do not statistics, processing data can not leave the Excel software, but some users in the use of Excel, "there is no digital signature of a trusted certificate" error prompts, how do we solve the problem? Below look at the small greetings to bring the solution!
Excel appears with "Trusted certificates without digital signatures" first step: we need to run an Excel program, and then find the tools--macros--in the top tool.
The second step: in the pop-up Window menu, we set the security level to a low level, and then save it!.
With these simple two-step actions, we are able to solve the problem that Excel has "no trusted certificate with additional digital signatures".
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