Was this ever fixed?  I'm having the same problem under 4.6.2.  I found apostrophies in the Tab Names and removed them which didn't help.  What other charaters besides apostrophies are invalid for a Tab Name to be exported.

I have the following characters that might be potential problems:

• question mark
• exclamation mark
• colon
• ampersand

I've also recusively synchronized the file system and read every forum post I can find with "export template" as my search term.

Thanks in advance to anyone who can shed some light on this..

comma,  !, &, :,

I am also getting an error when I try and export a template with content. It works fine without content.

I'm using DNN 4.5.3.  The intial export seems to work fine I get a confirmation within 1-2 seconds.

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The Portal Template Has Been Created to C:\web\poratl453\Portals\_default\portaltest.template

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But when I create a new portal (child) I recieve this error:

Server Error in '/' Application.

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Data at the root level is invalid. Line 1, position 1.