To download data from any individual Google spreadsheet, open the spreadsheet, click File > Download as, and choose a preferred file format such as Microsoft Excel, OpenDocument, or Comma-separated values. The chosen format should depend on whether you want to edit the spreadsheet using a specific program or import it into another application. To download all of your Google Sheets data at once, back up Google Drive by heading to takout.google.com, limiting the download to just Google Drive if desired, and selecting the file formats to be downloaded as PDF, Excel, or OpenDocument. The downloaded files will be stored in a ZIP archive containing all of your Google Drive documents, including every spreadsheet you've created in Google Sheets.