How to Password Protect an Excel File in Python

This brief article explains how to password protect an Excel file in Python while covering the details to configure the system and the detailed steps to develop the application. It also contains a runnable code snippet which is sufficient to encrypt Excel file with password in Python. It also discusses different encryption approaches, setting passwords, and writing the resultant file to different file formats like XLSX, XLS, etc.

Steps to Password Protect Excel in Python

  1. Configure the IDE to work with Aspose.Cells for Python via Java to encrypt an Excel file
  2. Access the input Excel file with the Workbook class
  3. Set the required encryption options like the protection type, password string, etc.
  4. Save the protected Excel file with the save() method

The steps above explain the process to password protect Excel file in Python in plain words. Firstly, load the source file and set the required protection level like securing the contents, structure, objects, etc. of the spreadsheet. Finally, specify the password string and write the generated Excel file in your desired format.

Code to Encrypt Workbook with Password in Python

This code snippet is designed to encrypt Excel file in Python with a few method calls. However, you can choose the encryption level using the ProtectionType class like securing the scenarios, windows, or all the contents of a spreadsheet. After encrypting the workbook, you can save it in any of the Excel-supported file formats.

In this article, we have learned to password protect any Excel workbook. Whereas, if you are interested in reading an already protected Excel file then take a look at how to read Password Protected Excel file in Python.