When working with large datasets in Excel, manually selecting thousands of rows can be tedious and time-consuming. However, with Python automation using libraries like xlwings, you can easily select a large number of rows with just a few lines of code. This automation saves you time and effort, allowing you to focus on more important tasks.

A very common question which is asked by an interviewer to data analyst, data scientists or excel specialist and many others.

One candidate gave an answer to this question by opening the excel sheet and selecting 10000 cells manually with cursor and mouse.

The other candidates opened the excel sheet and started typing in the formula bar, some formula so that 10000 rows will get selected.

But among them there was a smartest one who just opened python editor like sublime text and started typing code for the same. Smart work, isn’t it? yes that’s possible with python automation you can do it. let’s see how?

Create a python file with .py extension and paste this code given below.

import xlwings as xw

# Open the Excel workbook
wb = xw.Book('sales_calculator.xlsx')
sheet = wb.sheets['Sheet1']

# Set the range to select
start_cell = sheet.range('A1')
end_cell = sheet.range('J1000')

# Select the range
range_to_select = sheet.range(start_cell, end_cell)
range_to_select.select()

Explanation of the above code:

1. import xlwings as xw: This line imports the xlwings library and gives it the nickname xw, so we can refer to it more easily in our code.
2. wb = xw.Book('sales_calculator.xlsx'): This line opens an Excel workbook named 'sales_calculator.xlsx' and assigns it to the variable wb.
3. sheet = wb.sheets['Sheet1']: This line selects a specific sheet named 'Sheet1' from the workbook wb and assigns it to the variable sheet.
4. start_cell = sheet.range('A1'): This line specifies the starting cell of the range we want to select, which is cell A1 on the sheet.
5. end_cell = sheet.range('J1000'): This line specifies the ending cell of the range we want to select, which is cell J1000 on the sheet.
6. range_to_select = sheet.range(start_cell, end_cell): This line creates a range object that represents all the cells between start_cell and end_cell on the sheet.
7. range_to_select.select(): This line selects the range of cells specified by range_to_select in the Excel workbook, highlighting them as if you had clicked and dragged the mouse to select them manually.

Output:

In conclusion, Python automation using xlwings provides a simple and efficient way to select thousands of rows in Excel. By automating this process, you can streamline your workflow and improve productivity when working with large datasets.

Some Practical Examples for Python Automation in excel.