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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.
· Nayyer Shahbaz · 4 min