What is a Fast Data Extract??
Can some one help me with a sample .twbx workbook please ??
I'm not exactly sure what you are looking for. However, below are some links for more information on Tableau Data Extracts (tde):
Extracting Data | Tableau Software
In-Memory or Live Data: Which Is Better? | Tableau Software
Sneak Peek: Centralized Data Management in Tableau Server 7.0 | Tableau Software
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