XMLPort import using Bigtext Instream

Hi,

I am getting following error while importing data using XMLport when i use BigText for Instream data then i got error on Bigtext.Read(Instream);

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Microsoft Dynamics NAV Classic

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The XML Parser return the following fatal error:
A document must contain exactly one root element.

Line Number = 1 Column Number = 0

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OK

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The code I used is

CLEAR(ItemList);
TempBlobRec.Blob.IMPORT('C:\ItemList2.xml');
TempBlobRec.Blob.CREATEINSTREAM(streamin);
ItemList.READ(streamin);

CLEAR(ItemImport);
ItemImport.SETSOURCE(streamin);
ItemImport.IMPORT;

Thanks in advance..