Click on "Financials" > "Income statement" in the left menu to see income statements based on loaded accounting data.
The table rows can be compressed or expanded with the "Expand all" / "Collapse all" button. Then, you can export the table to an Excel file with "Export to Excel".
You can choose the period (the last day of the month you want to see) and the variant of the income statement you want to view. The ones at the top of the list only show outcomes, but those under Forecast show outcomes for the current period, followed by budget data for forecasted outcomes.
The rows in Boardeaser's tables are based on row templates.