Microsofy Dynamics NAV Add-In for Excel

Hi,

I am getting following error while Sending Item List to MS Excel in NAV 2013.

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Microsoft Excel

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Caption values are not included for some fields in the data source. Column names may not be translated. Customs Group Distribution Channel

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OK

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I found that this is happening because of Microsoft Dynamics Add-In installed and attached to MS Excel. When I remove this Add-In, I am able to export Item List successfully (but without any NAV specific formatting). I checked there is nothing specific mentioned in "Caption Class" , "Caption" or "CaptionML" property of above fields "Customs Group" and "Distribution Channel" in Item table as well as in Item form.

I am using MS Excel 2010.

Is this a known issue with MS Dynamics Add-In or something is wrong with my fields.

Thanks.