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The Create NI GUID.vi is using App.CreateGUID. On Windows App.CreateGUID private method calls CoCreateGuid function, which could be easily called directly from BD, as shown in that cross-posted link.

Good stuff! LabVIEW also has a private built-in method "CreateGUID", which is available from at least LV2009. It was probably also available in earlier versions. Create GUID.vi

This is an old thread, but if anyone else comes across this: If using LabVIEW 2020 or later, the best way to generate a GUID is to use the native Create NI GUID.vi which is found in the String >> Additional String Functions palette. If using LabVIEW 8.0 to LabVIEW 2019, the best way is to download the Create NI GUID.vi that is found at: GUID Generation for LabVIEW Versions Older than 2020 . This is the same VI as the one that exists natively since LabVIEW 2020, but "Saved for previous..." to LabVIEW 8.0. If using a LabVIEW version older than 8.0 on Windows, it's probably best to use the .NET Framework System.Guid object, as document in the following article: How to Generate a MessageID/GUID/UUID With LabVIEW? and as seen in the screenshot below. This comment was cross-posted at: https://forums.ni.com/t5/LabVIEW/Any-GUID-generating-VI-available/m-p/1246596

Mads' VI will give you the 'address' of your search value (row and column index values). You can use those values with the "Index Array" function to return an entire row or column.