How to Make Excel Send Workbook Copies Through New Outlook
Question details
Users want the Excel 'Send a Copy' command to open email drafts in the new Outlook application rather than classic Outlook.

- Product
- Microsoft Excel and Outlook
- Device & OS
- not provided
- Scenario
- Attempting to share an Excel workbook via email using the built-in 'Send a Copy' command.
- Observed behavior
- Excel opens the email draft in classic Outlook instead of the new Outlook, and messages may get stuck in the Outbox if classic Outlook is closed.
Ensure you have both classic Outlook and the new Outlook installed on your device, and verify your default mail app settings in Windows.
Toggle the 'Try New Outlook' Option in Classic Outlook
Use this method to refresh the integration settings between Excel and your installed Outlook applications.
Sometimes, Microsoft Office applications hold onto legacy MAPI integrations, causing Excel to launch classic Outlook. Toggling the new Outlook switch from within the classic app can help update these integration paths.
Make sure the new Outlook application is completely closed and not running in the background.
Launch the classic version of Microsoft Outlook from your Start menu or taskbar.
Locate and turn on the 'Try the new Outlook' toggle switch, usually found in the top right corner of the classic Outlook window.
Close all Outlook windows. Open your Microsoft Excel workbook and test the 'Send a Copy' command again.
Use WPS Office for Reliable Default Mail App Integration
Since Excel's built-in email features sometimes struggle to recognize the new Outlook due to legacy Microsoft Office protocols, try WPS Office. It is a free, lightweight alternative that seamlessly integrates with your system's default email client, avoiding classic Outlook conflicts.
- 1. Download WPS Office: Install WPS Office for free from the official website.
- 2. Open your spreadsheet: Open your existing .xlsx workbook in WPS Spreadsheet.
- 3. Share via Email: Click 'Menu' > 'Share' > 'Email' to instantly attach your file using your system's default email app without legacy conflicts.

Frequently Asked Questions
Why do my Excel emails get stuck in the Outbox?
This occurs because Excel routes the 'Send a Copy' request to classic Outlook. If classic Outlook is closed, it cannot process the Outbox queue, leaving the message unsent.
Does setting the new Outlook as the default Windows mail app fix this?
Not always. Some legacy Office commands rely on older MAPI protocols that bypass Windows default app settings and specifically call for classic Outlook.
Will Microsoft fix the 'Send a Copy' integration for new Outlook?
Microsoft is gradually migrating features to support the new Outlook. Until a specific update addresses the 'Send a Copy' command, users may need to manually attach workbooks to emails within the new Outlook app.




