Download a spreadsheet in Numbers for iCloud
You can download a spreadsheet from Numbers for iCloud to your computer in Numbers, PDF, Microsoft Excel, or CSV format. This is useful when you need to open a spreadsheet with another application or send it to people who use different software.
Note: If you choose CSV, each sheet is downloaded as a separate CSV file.
Do one of the following:
With the spreadsheet open: Click the More button
in the toolbar, choose Download a Copy, then select a format. Or, if you’re working with a shared spreadsheet set to View Only, click the Download button 
in the toolbar.In the spreadsheet manager: Select the spreadsheet, click the More button
that appears, then choose Download a Copy.
The spreadsheet is downloaded to the location set in your browser’s settings. For example, to see or change the download location for Safari on a Mac, choose Safari > Settings (on macOS Ventura 13 or later) or Safari > Preferences (on macOS 12 or earlier), click General, then look for the “File download location” pop-up menu.