Here's how to do it:
- Navigate to your Confluence space and click "Create" to start a new page where your Excel data will live.
- Enter the title of your page.
- Simply drag and drop your Excel file onto the page, or copy your spreadsheet data and use the "/table" command to create a formatted Confluence table.
- Reuse by copying the page manually, or ask a space admin to publish it as a custom template.