How to create a GUID in Excel?

As of modern version of Excel, there's the syntax with commas, not semicolons. I'm posting this answer for convenience of others so they don't have to replace the strings- We're all lazy... hrmp... human, right?

=CONCATENATE(DEC2HEX(RANDBETWEEN(0,4294967295),8),"-",DEC2HEX(RANDBETWEEN(0,65535),4),"-",DEC2HEX(RANDBETWEEN(0,65535),4),"-",DEC2HEX(RANDBETWEEN(0,65535),4),"-",DEC2HEX(RANDBETWEEN(0,4294967295),8),DEC2HEX(RANDBETWEEN(0,65535),4))

Or, if you like me dislike when a guid screams and shouts and you, we can go lower-cased like this.

=LOWER(CONCATENATE(DEC2HEX(RANDBETWEEN(0,4294967295),8),"-",DEC2HEX(RANDBETWEEN(0,65535),4),"-",DEC2HEX(RANDBETWEEN(0,65535),4),"-",DEC2HEX(RANDBETWEEN(0,65535),4),"-",DEC2HEX(RANDBETWEEN(0,4294967295),8),DEC2HEX(RANDBETWEEN(0,65535),4)))

I am using the following function in v.2013 excel vba macro code

Public Function GetGUID() As String 
    GetGUID = Mid$(CreateObject("Scriptlet.TypeLib").GUID, 2, 36) 
End Function 

=CONCATENATE(
    DEC2HEX(RANDBETWEEN(0;4294967295);8);"-";
    DEC2HEX(RANDBETWEEN(0;42949);4);"-";
    DEC2HEX(RANDBETWEEN(0;42949);4);"-";
    DEC2HEX(RANDBETWEEN(0;42949);4);"-";
    DEC2HEX(RANDBETWEEN(0;4294967295);8);
    DEC2HEX(RANDBETWEEN(0;42949);4)
)