Insert image in export excel using closed XML

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C#

MS-Excel

SharePoint2013

Hello Everyone

I am using SharePoint 2013 with CSOM code. I have created export excel Functionality using Closed XML. While exporting excel, i am creating header and footer for exported excel in Page-setup property. I am able add text but unable to insert/add image in header.

I am using below command to insert image:

worksheet.PageSetup.Header.Left.AddImage (imgpath, XLHFOccurrence.AllPages);

While using this command am getting below error message:

An Exception of type System.NotImplementedException: occurred in ClosedXML.dll but was not handled in user code
Additional Information: The method or operation is not implemented

So please help me out from this issue.

Thanks in Advance.

What I have tried:

i have tried to get images from SharePoint library and Visual Studio solution files and from local file system.