How to Password Protect and Encrypt Excel Files in C# .NET

This article provides a step-by-step guide on how to password protect and encrypt Excel files using C# .NET and REST API. It covers topics such as adding a password to an Excel file, encrypting the file, and protecting sheets and workbooks. By following these instructions, you can secure your Excel files and protect sensitive data from unauthorized access.
March 16, 2023 · 4 min · Nayyer Shahbaz