Microsoft Excel ODBC connection has stopped working

Hello @Mario

Welcome to the Microsoft Q&A Community! 

Thank you for providing the detailed error information and screenshots. I understand how important it is for your workflow to have these connections functioning correctly, and I appreciate your patience. 

After analyzing the error messages, the issue appears to be related to advanced ODBC driver behavior and connection string attributes, specifically the use of Trusted_Connection with an Excel ODBC driver. According to my research, the Excel ODBC driver only supports attributes relevant to Excel/Access files and the Trusted_Connection is specific to SQL Server ODBC connections and is invalid for Excel DSNs. This could be the reason why you're having the error while trying to connect. 

For reference: ODBC DSN and connection string keywords - ODBC Driver for SQL Server | Microsoft Learn 

However, as this type of configuration involves custom DSN settings and driver-specific parameters, which fall outside the scope of our direct support, to ensure you receive the most accurate and expert assistance, I recommend posting your question on one of the following Microsoft community platforms: 

• Microsoft Tech Community
• Stack Overflow (Excel / ODBC tags) 

These forums are actively monitored by experienced professionals and product experts who specialize in ODBC and Excel integration. They can provide detailed troubleshooting steps and potential workarounds tailored to your environment. 

Disclaimer: While we recommend these forums for your convenience, please carefully review and validate any steps or solutions provided before implementing them in your environment. This ensures compatibility and avoids unintended changes. 

I sincerely apologize for any inconvenience this may cause and appreciate your understanding.  

Thank you again for your patience and cooperation. 

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