Skip to content
Related Articles

Related Articles

Improve Article
Save Article
Like Article

Python | Adjusting rows and columns of an excel file using openpyxl module

  • Difficulty Level : Medium
  • Last Updated : 11 Jul, 2018

Prerequisites : Excel file using openpyxl writing | reading

Set the height and width of the cells:

Worksheet objects have row_dimensions and column_dimensions attributes that control row heights and column widths. A sheet’s row_dimensions and column_dimensions are dictionary-like values; row_dimensions contains RowDimension objects and column_dimensions contains ColumnDimension objects. In row_dimensions, one can access one of the objects using the number of the row (in this case, 1 or 2). In column_dimensions, one can access one of the objects using the letter of the column (in this case, A or B).

 Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.  

To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course. And to begin with your Machine Learning Journey, join the Machine Learning - Basic Level Course

Code #1 : Program to set the dimensions of the cells.

# import openpyxl module
import openpyxl
# Call a Workbook() function of openpyxl 
# to create a new blank Workbook object
wb = openpyxl.Workbook()
# Get workbook active sheet  
# from the active attribute. 
sheet =
# writing to the specified cell
sheet.cell(row = 1, column = 1).value = ' hello '
sheet.cell(row = 2, column = 2).value = ' everyone '
# set the height of the row
sheet.row_dimensions[1].height = 70
# set the width of the column
sheet.column_dimensions['B'].width = 20
# save the file'dimension.xlsx')



Merging the cells:

A rectangular area of cells can be merged into a single cell with the merge_cells() sheet method. The argument to merge_cells() is a single string of the top-left and bottom-right cells of the rectangular area to be merged.

Code #2 : Program to merge the cells.

import openpyxl
wb = openpyxl.Workbook()
sheet =
# merge cell from A2 to D4 i.e.
# A2, B2, C2, D2, A3, B3, C3, D3, A4, B4, C4 and D4 .
# A2:D4' merges 12 cells into a single cell. 
sheet.cell(row = 2, column = 1).value = 'Twelve cells join together.'
# merge cell C6 and D6
sheet.cell(row = 6, column = 6).value = 'Two merge cells.''merge.xlsx')



Unmerging the cells:

To unmerge cells, call the unmerge_cells() sheet method.

Code #3 : Program to unmerge the cells.

import openpyxl
wb = openpyxl.load_workbook('merge.xlsx')
sheet =
# unmerge the cells



Setting the font styles of the cells:

To customize font styles in cells, important, import the Font() function from the openpyxl.styles module.

Code #4 : Program to set the font of the text.

import openpyxl
# import Font function from openpyxl
from openpyxl.styles import Font
wb = openpyxl.Workbook()
sheet =
sheet.cell(row = 1, column = 1).value = "Ankit Rai"
# set the size of the cell to 24
sheet.cell(row = 1, column = 1).font = Font(size = 24 )
sheet.cell(row = 2, column = 2).value = "Ankit Rai"
# set the font style to italic
sheet.cell(row = 2, column = 2).font = Font(size = 24, italic = True)
sheet.cell(row = 3, column = 3).value = "Ankit Rai"
# set the font style to bold
sheet.cell(row = 3, column = 3).font = Font(size = 24, bold = True)
sheet.cell(row = 4, column = 4).value = "Ankit Rai"
# set the font name to 'Times New Roman'
sheet.cell(row = 4, column = 4).font = Font(size = 24, name = 'Times New Roman')'styles.xlsx')


My Personal Notes arrow_drop_up
Recommended Articles
Page :

Start Your Coding Journey Now!