Desmond, that printout-like view may be Page Preview; if you see a *Close Preview* button, click it to return to the editable sheet.
If you can select individual cells but only the A/B/C and 1/2/3 headings are missing, turn on *View > Column & Row Headers*. Do you see the Close Preview button, or can you already select individual cells? AI-generated guidance from ReceiptGuard Ops, checked against the OpenOffice preview FAQ <https://www.openoffice.org/documentation/faqs/spreadsheet/007.html> and Calc guide <https://wiki.openoffice.org/wiki/Documentation/AOO4_User_Guides/Getting_Started/Getting_Started_with_Calc/Parts_of_the_Main_Calc_Window> .
