Tak bym to widział w bashu:
sudo apt install -y python3.6 python3-pip && \
pip3 install --user openpyxl && \
python3.6 -c 'import openpyxl; wb = openpyxl.load_workbook("dupa.xlsx"); print(sum([b.value for a, b in zip(wb.active["A"], wb.active["B"]) if a.value.strip() == "filet z dorsza"]))'