Excel export and scheduled emails of workbooks only works after additional installation of node.js and several configuration tasks. Since these are frequently used features, it would make sense if those features would be functioning out of the box (meaning directly with the install of Oracle Analytics) without separate configuration. This would save a lot of installation / configuration time for every OAS installation. See :
https://docs.oracle.com/en/middleware/bi/analytics-server/administer-oas/enable-users-export-excel.html
Install the Workbook Email Scheduler Components