error when create word template in Microsoft dynamics 365

Dear experts

i always got below error when try create word template, i did every thing i know installed office on my personal pc with developer selection, installed also in crm server also with developer selection, restart service, restart servers, also my server is with last update until this moment, iam using Microsoft dynamics 365 on prim, and its upgraded from Microsoft crm 2016. 

error from Event viewer:

The Web Service plug-in failed in OrganizationId: ddc31aa8-e36a-48d4-afb8-a36644568c9b; SdkMessageProcessingStepId: f300c4e9-5529-4337-be36-1696c8fdd413; EntityName: none; Stage: 30; MessageName: ExportTemplateToWord; AssemblyName: Microsoft.Crm.Extensibility.InternalOperationPlugin, Microsoft.Crm.ObjectModel, Version=8.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35; ClassName: Microsoft.Crm.Extensibility.InternalOperationPlugin; Exception: Unhandled Exception: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation.
at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor)
at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)
at System.Web.Services.Protocols.LogicalMethodInfo.Invoke(Object target, Object[] values)
at Microsoft.Crm.Extensibility.InternalOperationPlugin.Execute(IServiceProvider serviceProvider)
at Microsoft.Crm.Extensibility.V5PluginProxyStep.ExecuteInternal(PipelineExecutionContext context)
at Microsoft.Crm.Extensibility.VersionedPluginProxyStepBase.Execute(PipelineExecutionContext context)
Inner Exception: System.IO.FileLoadException: Could not load file or assembly 'Microsoft.Dynamics.Nav.OpenXml, Version=9.0.0.0, 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)
at Microsoft.Crm.ObjectModel.WordService.ExportTemplate(Int32 entityTypeCode, String selectedEntities, IOrganizationContext context)
at Microsoft.Crm.ObjectModel.DocumentTemplateService.ExportTemplateToWord(Int32 entityTypeCode, String selectedEntities, ExecutionContext executionContext)
.

please any help what i can do, i read many article and saw many video of creating word template and i saw that every thing applied very easy and working fine with them, so what the problem with me.