How can I generate GUIDs in Excel?

Solution 1:

The following Excel expression evaluates to a V4 GUID:

=CONCATENATE(DEC2HEX(RANDBETWEEN(0,4294967295),8),"-",DEC2HEX(RANDBETWEEN(0,65535),4),"-",DEC2HEX(RANDBETWEEN(16384,20479),4),"-",DEC2HEX(RANDBETWEEN(32768,49151),4),"-",DEC2HEX(RANDBETWEEN(0,65535),4),DEC2HEX(RANDBETWEEN(0,4294967295),8))

-or (depending on locale setting/decimal and list separators)-

=CONCATENATE(DEC2HEX(RANDBETWEEN(0;4294967295);8);"-";DEC2HEX(RANDBETWEEN(0;65535);4);"-";DEC2HEX(RANDBETWEEN(16384;20479);4);"-";DEC2HEX(RANDBETWEEN(32768;49151);4);"-";DEC2HEX(RANDBETWEEN(0;65535);4);DEC2HEX(RANDBETWEEN(0;4294967295);8))

Note that the first character of the third group is always 4 to signify a V4 (pseudo-random number generated) GUID/UUID per RFC 4122 section 4.4.

Also note that the first character of the fourth group is always between 8 and B per the same RFC.

Standard disclaimer: the resulting GUIDs/UUIDs are not cryptographically strong.

Edit: remove invisible characters

Solution 2:

I used the following function in v.2013 excel vba to create a GUID and is working well..

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

How can I generate GUIDs in Excel?

Solution 1:

Solution 2:

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