The ExportData file is updated with improved display formatting for currency fields exported to Microsoft Excel.
During migration, the ExportData.cs (.vb) code-behind file in your application is replaced with an updated file. Any changes you have made to this file will be lost. This file is located in:
...\<Application Folder>\App_Code\Shared\ExportData.cs (.vb)
After migration, re-apply any changes you may have made to the original ExportData.cs (.vb) file to the new file in your application.
Version 5.1 Application Migration