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I am using openxmlpowertool for reading document file with format. It uses reference of DocumentFormat.OpenXml.dll of version but for some functions I need DocumentFormat.OpenXml.dll of version 2.0.5022 for reference, If I add DocumentFormat.OpenXml.dll of version it gives follwing exception

Exception in event log:

Message: Could not load file or assembly 'DocumentFormat.OpenXml, Version=2.0.5022.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

Exception type: System.IO.FileLoadException Stack Trace: at CMS.ImportExport.DataExportHelper.ExportToExcel(DataSet dataSet, Stream stream) at CMS.ImportExport.DataExportHelper.ExportData(DataExportFormatEnum format, HttpResponse response)

What I have tried:

I have tried follwing bindingredirct in Web.config,

<assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">        
    <assemblyIdentity name="DocumentFormat.OpenXml" />
    <bindingRedirect oldVersion="2.0.5022.0" newVersion=""/>

I am not able to get publicKeyToken for the DocumentFormat.OpenXml 2.6.0 with
C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC>sn -T D:\DocumentFormat.OpenXml.dll

Gives "D:\DocumentFormat.OpenXml.dll does not represent a strongly named assembly", so I have not specified
Updated 22-Aug-16 2:06am
Philippe Mori 22-Aug-16 19:38pm    
You should use a single version and deploy that version. If everything matches, then it should work. Otherwise, it is probably a guess depending on how much old and new version are compatible...
InbarBarkai 24-Aug-16 2:42am    
Assembly bindings without PublicKeyToken are ignored.
What is the source of your package? I'm pretty sure the one from Microsoft NuGet Server is signed.

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