The following information to answer the subject of your question is directly from the Connecting Tableau to Denodo document found in the Knowledge Base (https://community.denodo.com/kb/view/document/Northbound%20Connections/Connecting%20Tableau%20to%20Denodo):
"The following configuration file can be used:
- odbc64-denodo.tdc
...
Once the configuration file is ready it must be copied to the Tableau installation. If the user has access to the global filesystem, copy the file to:
- <TABLEAU_HOME>/defaults/Datasources
If the access to the Tableau installation folder is not possible, the configuration can still be personalized for each user. In this case copy the configuration file to:
- %HOMEPATH%/Documents/My Tableau Repository/Datasources
NOTE: when this configuration is to be applied on a Tableau Server installation, instead of on Tableau Desktop, the configuration file must be copied to:
- <TABLEAU_HOME>/Tableau Server/<version>/bin"
Hope that helps!