###############################################################################
#
# Example of how to hide rows and columns in XlsxWriter. In order to
# hide rows without setting each one, (of approximately 1 million rows),
# Excel uses an optimizations to hide all rows that don't have data.
#
# SPDX-License-Identifier: BSD-2-Clause
#
# Copyright (c) 2013-2025, John McNamara, jmcnamara@cpan.org
#
import xlsxwriter

workbook = xlsxwriter.Workbook("hide_row_col.xlsx")
worksheet = workbook.add_worksheet()

# Write some data.
worksheet.write("D1", "Some hidden columns.")
worksheet.write("A8", "Some hidden rows.")

# Hide all rows without data.
worksheet.set_default_row(hide_unused_rows=True)

# Set the height of empty rows that we do want to display even if it is
# the default height.
for row in range(1, 7):
    worksheet.set_row(row, 15)

# Columns can be hidden explicitly. This doesn't increase the file size..
worksheet.set_column("G:XFD", None, None, {"hidden": True})

workbook.close()
