Posted on

help extract

Zipped (compressed) files take up less storage space and can be transferred to other computers more quickly than uncompressed files. In Windows, you work with zipped files and folders in the same way that you work with uncompressed files and folders. Combine several files into a single zipped folder to more easily share a group of files.

If you add encrypted files to a zipped folder, they’ll be unencrypted when they’re unzipped, which might result in unintentional disclosure of personal or sensitive information. For that reason, we recommend that you avoid zipping encrypted files.

Press and hold (or right-click) the file or folder, select (or point to) Send to, and then select Compressed (zipped) folder.

To unzip all the contents of the zipped folder, press and hold (or right-click) the folder, select Extract All, and then follow the instructions.

Locate the file or folder that you want to zip.

Breaking ties in Top N queries

You can choose to have Tableau store the data in your extract using one of two structures (schemas): logical tables (denormalized schema) or physical tables (normalized schema). For more information about logical and physical tables, see The Tableau Data Model.

About the Compute Calculations Now option for extracts

You can remove an extract at anytime by selecting the extract data source on the Data menu and then selecting Extract > Remove . When you remove an extract, you can choose to Remove the extract from the workbook only or Remove and delete the extract file . The latter option will delete the extract from your hard drive.

Regenerate the extract: Recreates the extract. All filters and other customizations you specified when you originally created the extract are automatically applied.

Select Aggregate data for visible dimensions to aggregate the measures using their default aggregation. Aggregating the data consolidates rows, can minimize the size of the extract file, and increase performance.