OpenPyXl investigation

openpyxl_investigation.py

from openpyxl import Workbook
from openpyxl.compat import range
from openpyxl.utils import get_column_letter

wb = Workbook()

dest_filename = 'empty_book.xlsx'

ws1 = wb.active
ws1.title = "range names"

for row in range(1, 40):
    ws1.append(range(600))

ws1.column_dimensions.group('A','D')
for idx in range(1, 20):
    ws1.row_dimensions[idx].outlineLevel = 1

for idx in range(10, 15):
    ws1.row_dimensions[idx].outlineLevel = 2

for idx in range(30, 40):
    ws1.row_dimensions[idx].outlineLevel = 1

ws2 = wb.create_sheet(title="Pi")

ws2['F5'] = 3.14

ws3 = wb.create_sheet(title="Data")
for row in range(10, 20):
    for col in range(27, 54):
        _ = ws3.cell(column=col, row=row, value="{0}".format(get_column_letter(col)))
wb.save(filename=dest_filename)