![](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/17048407074/original/MO8inT2fn2ygxXDXrKE1GFgLbrA6Mqn9Dg.png?1568315580)
The Event log application logs the Event 1026, .NET Runtime, which indicates the crash is the result of Excel component.
Application: Microsoft.Dynamics.Nav.Client.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.IO.FileLoadException
at Microsoft.Dynamics.Nav.Client.WinClientExcelExportService.OpenExcelUsingCom(System.String, Boolean)
at Microsoft.Dynamics.Nav.Client.WinClientExcelExportService.StartShowingExcelFile(System.Object)
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(System.Object)
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.IO.FileLoadException
at Microsoft.Dynamics.Nav.Client.WinClientExcelExportService.OpenExcelUsingCom(System.String, Boolean)
at Microsoft.Dynamics.Nav.Client.WinClientExcelExportService.StartShowingExcelFile(System.Object)
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(System.Object)
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
![](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/17048407075/original/QkncDFMx7k91sfoeUsjGtY8Q_KvhUeBNZQ.png?1568315581)
This crashes is due to the incompatibility issue between Dynamics NAV addin for Excel application
![](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/17048407076/original/un5LUNHg5GgvtU-6zO11EwPcLlNC8eRj3A.png?1568315581)
To remove Dynamics NAV addin in Excel application:
1. go to File\Options in Excel.
2. In Excel Options window, go to Add-ins tab; select COM add-ins and click on Go.
![](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/17048407077/original/QnAxmYY08yqUGxi7DqFc91QyjKEr4ewLKA.png?1568315581)
3. Untick the Microsoft Dynamics NAV Add-in and click OK.
![](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/17048407073/original/myb88y1YVm3iIu_5dRSFY-xIi3-_htUyfw.png?1568315580)