1. Open any Sales Report.
2. At the top, set Begin and End using the date pickers.
3. Click Search.

If you open a report without choosing dates, it shows the last 7 days up to today. If you set a Begin date later than the End date, Sprwt moves the End date to match the Begin date. Both days are included in full (from 00:00 on the Begin day to 23:59 on the End day).

The chosen dates are carried in the page address, so when you click another report in the Sales Reports menu the same Begin/End range is kept. (Orders Metrics has its own newer date-range toolbar with preset options like "Last 7 Days" and "Month to Date" instead of this Begin/End form.)