'Microsoft has blocked macros from running because the source of this file is untrusted' | Excel 365

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In this Microsoft Excel video tutorial I explain the fix for these two messages:

'Microsoft has blocked macros from running because the source of this file is untrusted'
and
'Cannot run the macro. The macro may not be available in this workbook or all macros may be disabled'
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[dylan-dylan-dylan]

Thank you SO MUCH for the simple, quick explanation. ❤❤❤

[IvanCortinas_ES]

Great!! That's important Chester, because it is a little hidden option. Thank you!!

[crististreulea]

Hi, i have exactly this message "Microsoft has blocked macros from running because the source of this file is not trusted". Macros are activated.
I right click on file and there's no Security option with Unblock box that can be check.
Same file work without problems on other computers

[AlisirinTime]

Unfortunately I don't have the security unblock thingy under attributes, where could it be hiding?

[Hkgaming]

unable to edite the file after unblocked, what is the reason

[harishsingh_]

Hi, whenever I download the macro files it shows the same I have to manually unblock each files from properties.
Is there any permanent solution.
Please suggest