Click and then Save to download the file to your computer. How to Download from Outlook on the Web (OWA)
: Best for viewing your schedule in Excel or using it for data analysis.
Downloading your Outlook calendar is a straightforward process, whether you want a static file for backup or a live sync to keep all your devices updated. Depending on your goal, you can export your data as an or CSV file, or synchronize it directly with your smartphone. How to Download Outlook Calendar as a File (Desktop)
If you need a copy of your schedule for record-keeping or to move it to another app like Google Calendar, you should export it as an or CSV file.
Export an Outlook calendar to Google Calendar - Microsoft Support