openpyxl
  1. openpyxl-merging-and-unmerging-cells

Merging and Unmerging Cells - ( Cell Formatting in Openpyxl )

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Syntax

# Merging cells
worksheet.merge_cells('A1:B1')

# Unmerging cells
worksheet.unmerge_cells('A1:B1')

Example

import openpyxl

# Load the workbook
workbook = openpyxl.load_workbook('sample.xlsx')

# Select the active worksheet
worksheet = workbook.active

# Merge cells A1 and B1
worksheet.merge_cells('A1:B1')

# Unmerge cells A1 and B1
worksheet.unmerge_cells('A1:B1')

# Save the changes to the workbook
workbook.save('sample.xlsx')

Output

The output will be a workbook with either merged cells or unmerged cells based on the example code.

Explanation

Openpyxl is a Python library for working with Excel spreadsheets. Two common formatting tasks when dealing with cells in Excel are merging cells and unmerging cells. The worksheet.merge_cells() method merges the specified cells into a single cell, while the worksheet.unmerge_cells() method unmerges merged cells.

In the above example, we load an existing Excel workbook and select the active worksheet. We then merge cells A1 and B1 using the worksheet.merge_cells() method and unmerge the same cells using the worksheet.unmerge_cells() method. Finally, we save the changes to the workbook.

Use

Merging and unmerging cells in Excel can be useful for formatting cells and presenting data in a visually appealing way. Merged cells can be used to create headings and stretch across multiple columns, while unmerged cells can be used to separate data into individual cells for easier reading.

Important Points

  • Merging cells in Excel can be done using the worksheet.merge_cells() method in Openpyxl
  • Unmerging cells in Excel can be done using the worksheet.unmerge_cells() method in Openpyxl
  • Merged cells can be useful for creating headings and stretching across multiple columns
  • Unmerged cells can be useful for separating data into individual cells for easier reading

Summary

In conclusion, Openpyxl provides the worksheet.merge_cells() and worksheet.unmerge_cells() methods for merging and unmerging cells in Excel spreadsheets. Merged cells can be used to create headings and span across multiple columns, while unmerged cells can be used to separate data into individual cells for easier reading. These formatting options can be helpful in presenting data in a visually appealing way.

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