Hi,

In Odoo 17 Community, you can create interactive dashboards and spreadsheets using the Spreadsheet module, but you cannot directly upload an external Excel or CSV file to display it as a live dashboard out of the box. The recommended approach is to first import your file into an Odoo model—either an existing one or a custom model—and then link your spreadsheet dashboard to that model. This allows you to use formulas, charts, and pivot tables dynamically based on the imported data. If you only need a static display, you can manually paste the data into the spreadsheet. For a fully automated solution where the uploaded file dynamically updates the dashboard, a small custom module would be required.

Hope it helps

No, It's not possible.