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Illegal File Type for Excel Protocol when viewing published workbook on Linux


Published: 27 Feb 2018
Last Modified Date: 12 Mar 2018

Issue

When viewing a published workbook on Tableau Server for Linux that has an Excel workbook embedded as a data source, the following error will be presented, if the extension for the Excel Workbook is capitalized:

"Illegal File Type for Excel Protocol"

Environment

  • Tableau Server 10.5.0
  • Linux 
  • Excel

Resolution

As a workaround, rename the Excel workbook with the extension in lower case and republish to Tableau Server.

Cause

This issue is being investigated by Tableau under ID 747818.
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