I can't use Macros in Microsoft Office 365

Cristobal Vergara 0 Reputation points

Hello, good morning. I hope you are doing well. I'm writing to you because I created a program with macros to use it simultaneously on three computers for a project. We subscribed to Microsoft Office 365 Family so that all accounts have Office 365 and we can work together. However, when I try to open the file in the desktop application, I get the following message: "Microsoft has blocked the execution of macros because the source of this file is not trusted." To address this issue, I looked for solutions and found that in the Trust Center, it was necessary to "Enable all VBA macros (not recommended; potentially unsafe code can run)," as well as check the option "Trust access to the VBA project object model" and "Enable Excel 4.0 macros when VBA macros are enabled," but I didn't get any positive results.

On another note, I found that it's possible to resolve this by digitally signing the document. To do this, I need to obtain a digital certificate or open the "Selfcert.exe" file located in "C:\Program Files\Microsoft Office\root\Office16." However, when I try to open it, I receive the message: "The application could not start correctly (0xc0000142). Click OK to close it."

I haven't been able to find useful information on how to obtain a digital certificate, which I understand might be free. Therefore, I would appreciate a detailed, step-by-step guide on how to obtain a digital certificate and sign files with macros so that they can be used simultaneously by multiple team members with Office 365.

Thank you in advance.

Microsoft 365
Microsoft 365
Formerly Office 365, is a line of subscription services offered by Microsoft which adds to and includes the Microsoft Office product line.
2,708 questions
0 comments No comments
{count} votes