You can export your data at any time. Exports created from the dashboard stop at 5,000 rows; for everything, use Reports › Exports › Full data, which has no limit.
Choose the format (CSV or Excel), pick the date range and press Export. Large exports are prepared in the background and you receive a download link by email within the hour. The link stays valid for 7 days.
If an export is missing columns you need, open a support ticket and we will add them for you.