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Navisworks Reader – GUID attribute not preserved when reading NWD/NWC files

  • April 30, 2026
  • 1 reply
  • 9 views

edualarcong
Contributor
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Hello FME Community,

When using the Navisworks Reader, I encounter a constant issue when trying to preserve the element GUID as a feature attribute. The GUID attribute is exposed by the reader, but some values return a string of zeros (e.g., 00000000-0000-0000-0000-000000000000) even though those same elements display a valid GUID in Navisworks. This seems to occur for elements originating from certain authoring tools, such as Tekla. 

The GUID is a 128-bit unique identifier assigned to every element in a Navisworks model. This value serves for element traceability.

Is there a workaround for correctly extracting this value? 
 

 

1 reply

danilo_fme
Celebrity
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  • Celebrity
  • April 30, 2026

Hi ​@edualarcong 

 

Please, could you share a sample of this data?

 

Thanks in Advance/Gracias,