Reading an excel file using Python openpyxl module

Openpyxl is a Python library for reading and writing Excel (with extension xlsx/xlsm/xltx/xltm) files. The openpyxl module allows Python program to read and modify Excel files.
For example, users might have to go through thousands of rows and pick out a few handful of information to make small changes based on some criteria. Using Openpyxl module, these tasks can be done very efficiently and easily.
Use this command to install openpyxl module : 

sudo pip3 install openpyxl 

Input file :

Code #1 : Program to print the particular cell value 

Python3

# Python program to read an excel file

# import openpyxl module
import openpyxl

# Give the location of the file
path = "C:\\Users\\Admin\\Desktop\\demo.xlsx"

# To open the workbook
# workbook object is created
wb_obj = openpyxl.load_workbook(path)

# Get workbook active sheet object
# from the active attribute
sheet_obj = wb_obj.active

# Cell objects also have a row, column,
# and coordinate attributes that provide
# location information for the cell.

# Note: The first row or
# column integer is 1, not 0.

# Cell object is created by using
# sheet object's cell() method.
cell_obj = sheet_obj.cell(row = 1, column = 1)

# Print value of cell object
# using the value attribute
print(cell_obj.value)

Output :

STUDENT 'S NAME

Code #2 : Determine total number of rows 

Python3

# import openpyxl module
import openpyxl

# Give the location of the file
path = "C:\\Users\\Admin\\Desktop\\demo.xlsx"

# to open the workbook
# workbook object is created
wb_obj = openpyxl.load_workbook(path)
sheet_obj = wb_obj.active

# print the total number of rows
print(sheet_obj.max_row)

Output :

6

Code #3 : Determine total number of columns 

Python3

# importing openpyxl module
import openpyxl

# Give the location of the file
path = "C:\\Users\\Admin\\Desktop\\demo.xlsx"

# workbook object is created
wb_obj = openpyxl.load_workbook(path)

sheet_obj = wb_obj.active

# print total number of column
print(sheet_obj.max_column)

Output :

4

Code #4 : Print all columns name 

Python3

# importing openpyxl module
import openpyxl

# Give the location of the file
path = "C:\\Users\\Admin\\Desktop\\demo.xlsx"

# workbook object is created
wb_obj = openpyxl.load_workbook(path)

sheet_obj = wb_obj.active
max_col = sheet_obj.max_column

# Loop will print all columns name
for i in range(1, max_col + 1):
    cell_obj = sheet_obj.cell(row = 1, column = i)
    print(cell_obj.value)

Output :

STUDENT 'S NAME
COURSE
BRANCH
SEMESTER

Code #5 : Print first column value 

Python3

# importing openpyxl module
import openpyxl

# Give the location of the file
path = "C:\\Users\\Admin\\Desktop\\demo.xlsx"

# workbook object is created
wb_obj = openpyxl.load_workbook(path)

sheet_obj = wb_obj.active
m_row = sheet_obj.max_row

# Loop will print all values
# of first column
for i in range(1, m_row + 1):
    cell_obj = sheet_obj.cell(row = i, column = 1)
    print(cell_obj.value)

Output :

STUDENT 'S NAME
ANKIT RAI
RAHUL RAI
PRIYA RAI
AISHWARYA
HARSHITA JAISWAL

Code #6 : Print a particular row value 

Python3

# importing openpyxl module
import openpyxl

# Give the location of the file
path = "C:\\Users\\Admin\\Desktop\\demo.xlsx"

# workbook object is created
wb_obj = openpyxl.load_workbook(path)

sheet_obj = wb_obj.active

max_col = sheet_obj.max_column

# Will print a particular row value
for i in range(1, max_col + 1):
    cell_obj = sheet_obj.cell(row = 2, column = i)
    print(cell_obj.value, end = " ")

Output :

ANKIT RAI B.TECH CSE 4