# 9.1. Taxonomy File Plugin
The **Taxonomy File** plugin is used to generate a taxonomy file in .txt format and replace it for the active version of Revit.
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To launch the plugin, open the **Qsee** tab and select **Taxonomy File** from the **Asset Data** panel.
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A dropdown menu will appear containing all available classifiers from the **List of Classification** module. The appropriate classifier for the current session should be selected from this list.
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Important: The plugin generates and saves the Taxonomy File only for the version of Revit in which it was launched. Other plugins rely on this loaded file as a basis for their operation. If a different classifier needs to be used, the file must be regenerated by selecting the corresponding classification table and restarting the current Revit session. Upon completion, a notification window will confirm that the Taxonomy File is ready. The window can then be closed.
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Note:
The newly generated Taxonomy File is saved in the following directories:
%AppData%\Autodesk\Revit\Autodesk Revit 20xx
%ProgramData%\Autodesk\RVT 20xx\UserDataCache
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{% endstep %}
{% step %}
When a new file is generated using the **Taxonomy File** plugin, restarting the current Revit session is required to ensure proper activation. Otherwise, the previous version of the file will remain in use.
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A notification window appears to inform that the Revit session needs to be restarted.
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