Tableau data extract (.dte) Stores tableau data as a filtered and aggregated extract. TDE files are data extracted from external sources such as MS Access or Excel. It is used for external data. This data can be text, numerical, or statistical data.
TDE extracts are Tableau's method of caching data logically to reduce database hits for frequent access reports. TDE extract can be refreshed manually through the Tableau desktop or can be scheduled for periodic refresh through the enterprise edition.
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