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Encrypt and Decrypt Excel Files using C#

MS Excel provides an encryption mechanism to protect the data in the spreadsheets from unauthorized users. Along with applying encryption, you can specify the password that is required to open the Excel files. This article covers how to perform the encryption of Excel files from within .NET applications. Particularly, you will learn how to encrypt and decrypt the Excel files using C#.
January 14, 2021 · 3 min · Usman Aziz