Find the bulk data extract reports by going to the Reports tab and the Bulk Data Extract sub-tab:
The bulk data extract reports are specially formatted for export to .CSV, can open in Excel, and are suitable for most upload functions.
Note: Because each report has a lot of columns, the view seen in the browser tab is unreadable and the report must be exported to .CSV to be viewable.
Export to Excel will work but will show only the raw data without the column header row.