Hi @Anonymous ,
Welcome to Microsoft Q&A!
This happens may because of the choice of the wrong version (32-bit or 64-bit) of the SQL Server Import and Export Wizard. For example, if exporting data from the 64-bit version of SQL Server and using the SQL Server Import and Export Wizard via SSMS which is 32-bit application and include 32-bit version of the SQL Server Import and Export Wizard and, because of that, the above warning message will appear. To resolve this, launch 64-bit version of the SQL Server Import and Export Wizard.
For more information, please refer to this article: https://www.sqlshack.com/importexport-data-sql-server-using-sql-server-import-export-wizard/
Best regards,
Seeya
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