Could not load file or assembly ‘Microsoft.Office.Tools.Excel, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3

Error : Could not load file or assembly ‘Microsoft.Office.Tools.Excel, Version=8.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3

Cause : The application uses Microsoft ASP.NET Microsoft.Office.Tools.Excel, Version=8.0.0.0 , but they had not been installed on the production machine or on the hosting server.

Solution : Request to download the Microsoft.Office.Tools.Excel, Version=8.0.0.0 installer from Microsoft and run it on the live server.

Or please delete the below error line from your web.config file
<add assembly=”Microsoft.Office.Tools.Excel, Version=8.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A” />

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