Python | Arithmetic operations in excel file using openpyxl

Prerequisite: Reading & Writing to excel sheet using openpyxl

Openpyxl is a Python library using which one can perform multiple operations on excel files like reading, writing, arithmatic operations and plotting graphs. Let’s see how to perform different arithmatic operations using openpyxl.

• =SUM(cell1:cell2) : Adds all the numbers in a range of 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 = wb.active    # writing to the cell of an excel sheet sheet['A1'] = 200 sheet['A2'] = 300 sheet['A3'] = 400 sheet['A4'] = 500 sheet['A5'] = 600    # The value in cell A7 is set to a formula  # that sums the values in A1, A2, A3, A4, A5 . sheet['A7'] = '= SUM(A1:A5)'    # save the file wb.save("sum.xlsx")

  Output:
  

• =PRODUCT(cell1:cell2) : Multiplies all the numbers in the range of cells.

  import openpyxl    wb = openpyxl.Workbook() sheet = wb.active    sheet['A1'] = 2 sheet['A2'] = 3 sheet['A3'] = 4 sheet['A4'] = 5 sheet['A5'] = 6    # The value in cell A7 is set to a formula  # that multiplies the values in A1, A2, A3, A4, A5 . sheet['A7'] = '= PRODUCT(A1:A5)'    wb.save("product.xlsx")

  Output:
  

• =AVERAGE(cell1:cell2) : It gives the average (arithmetical mean) of all the numbers which is present in the given cell range.

  import openpyxl    wb = openpyxl.Workbook() sheet = wb.active    sheet['A1'] = 200 sheet['A2'] = 300 sheet['A3'] = 400 sheet['A4'] = 500 sheet['A5'] = 600    # The value in cell A7 is set to a formula  # that return average of the values in A1, A2, A3, A4, A5 . sheet['A7'] = '= AVERAGE(A1:A5)'    wb.save("average.xlsx")

  Output:
  

• =QUOTIENT(num1, num2) : It returns the integer portion of a division.

  import openpyxl    wb = openpyxl.Workbook() sheet = wb.active    # The value in cell is set to a formula  # that gives quotient value . sheet['A1'] = '= QUOTIENT(64, 8)' sheet['A2'] = '= QUOTIENT(25, 4)'    wb.save("quotient.xlsx")

  Output:
  

• =MOD(num1, num2) : Returns the remainder after a number is divided by the divisor.

  import openpyxl    wb = openpyxl.Workbook() sheet = wb.active    # The value in cell is set to a formula  # that gives remainder or modulus value. sheet['A1'] = '= MOD(64, 8)' sheet['A2'] = '= MOD(25, 4)'    wb.save("modulus.xlsx")

  Output:
  

• =COUNT(cell1:cell2) : It counts the number of cells in a range that contain the number.

  import openpyxl    wb = openpyxl.Workbook() sheet = wb.active    sheet['A1'] = 200 sheet['A2'] = 300 sheet['A3'] = 400 sheet['A4'] = 500 sheet['A5'] = 600    # The value in cell A7 is set to a formula  # that gives counting of number present in the cells. sheet['A7'] = '= COUNT(A1:A6)'    wb.save("count.xlsx")

  Output: