Is this for a specific Tableau Public workbook or all of them? If it's a specific workbook, can you share the link with us?
Not OP, but I'm having the same problem. Here is one link but it is happening with many. I expect that a system environment variable is not set correctly?
I am using Tableau Public 9.0
Hi I am getting the same error. I am going through the tutorials offered by Tableau and many workbooks that I have downloaded cannot be opened.
I am using version 9.1
Just because it's a .twbx doesn't mean it's public. Public files are download from public... Desktop can generate .twbx files as well.
You likely need to change the default program associated with the .twbx and .twb file paths. No idea why it could get set to Tableau Public (if anyone knows, please share) but that's probably what's causing this. You can change it to Tableau Reader or Tableau Desktop, whichever you prefer/are using.
In your Windows home button, search "default programs" and click on Default Programs. Then click on "Choose default apps by file type". Scroll down to .twb and .twbx (and other Tableau file types if you want) and change the default to Reader or Desktop, whichever you want.