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Excel Data Extraction with Python

03.04.2024

Introduction to the technique of abstracting data from the spreadsheets

Gathering data from Microsoft Excel spreadsheets is one of the most frequently used type of operation for data analysts, developers, and automonation professionals. For example, you might need to import data for further analysis, secure yourself against loss of important information by making backups, or transform data by manipulating Excel files – Python will have a variety of powerful libraries to deal with Excel files.

Commonly Used Python Libraries for Excel

There are several popular libraries in Python for extracting data from Excel files, each with its own advantages and features:There are several popular libraries in Python for extracting data from Excel files, each with its own advantages and features:

Openpyxl

Openpyxl is a free & open-source library, which makes possible if reading or writing .xlsx and .xlsm Excel file. It is the front end of the Microsoft Excel software, which offers a complex box of possibilities for exploiting the spreadsheet like text formatting, charts and macros.

Xlrd and Xlwt

xlrd and xlwt are the libraries that are used for opening, editing, and saving .xls files (the old format of Excel). Although they are quick and easy to use, only the older .xls file format is supported and their advanced functions are meagerly limited when compared with the other solutions out there.

Pandas

Pandas is a powerful data analysis library in Python which also isn’t limited to importing and exporting data (-xls). It is fast and versatile for when the databases are too large.

Xlwings

Xwings is a library that enables you to access Excel’s features via Python and thus makes it an excellent counterpart for such tasks that require interaction with Excel’s user interface (UI).

Extracting data from an Excel file using Openpyxl.

It is the right option for many people who are manipulating the Excel data in Python as it provides high flexibility and range of opportunities. Here’s an example code demonstrating how to extract data from an Excel file using Openpyxl:Here’s an example code demonstrating how to extract data from an Excel file using Openpyxl:


import openpyxl

# Load the Excel file
workbook = openpyxl.load_workbook('data.xlsx')

# Select the active sheet
worksheet = workbook.active

# Extract data from cells
for row in worksheet.iter_rows(min_row=2, min_col=1, max_col=3):
name = row[0].value
age = row[1].value
city = row[2].value
print(f"Name: {name}, Age: {age}, City: {city}")

Here we will make file data.xlsx active, select the second row after skipping the first row (which should be the header), and then iterate through. From these we next get the values ​​and we then print them on screen.

Additional Openpyxl Capabilities

Openpyxl provides numerous additional features for working with spreadsheets, including:Openpyxl provides numerous additional features for working with spreadsheets, including:

  • There are two sides of the same problem, namely, data collection and data usage.

  • Number formatting (centered and bolded to attract attention, coloring to emphasize metrics, etc.).

  • Sheet processing (creation, deletion and naming)

  • Amcarerîz I worked with charts and graphs.

  • One of the major advantages of using Excel is its ability to manage formulas and macros.

For fluffier assignments, you may delve into other Python libraries such as Pandas or xlwings, depending on the specific requirements.

Conclusion

Working with huge data sets in Excel could be a common process that you would repeat many times and which could come with difficulties, you are probably familiar with, but Python could be an easy solution. Libraries such as Openpyxl, Pandas, xlwings are very powerful and provide us with the tools required for reading, writing or editing an excel files. Thus, if these tasks need to be performed by a solution, then Python could be a good option.

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