Yes, in two ways depending on the report:

• Tables and View more pop-ups (Taxes, Meals, Packs, Meals by Vendor, First Time, Abandoned Carts, Referred Users, and the coupon/tip/refund/subscription detail pop-ups) have PDF and Excel buttons above the table. The export is titled "Stats for <Begin> - <End>" and the file is named Stats_<Begin>_<End>; the PDF is landscape.
• The Profit And Loss Report and the Cash Flow report have an Export CSV button at the top right. It exports the rows currently shown, so switch to a Detailed tab first if you want the line items included.

The summary tiles (cards) themselves are not exportable; use your browser's print function for those.