Protect Excel using C#
Encrypt and protect Excel XLSX spreadsheet with a password and AES 256 bit encryption algorithm.
Protect Excel features
Encrypt and protect Excel XLSX spreadsheet with a password and AES 256 bit encryption algorithm.
C# library install
ConvertAPI provides an ASP.NET C# library that allows you to perform a Protect Excel conversion with just a few lines of code. Protect Excel documents using C# programming language with no effort at all!
Install-Package ConvertApi
Authenticate ConvertAPI C# library
You can obtain your secret key by signing up for a free account. Once you sign up, you'll receive 250 free conversions instantly! Grab your authentication secret from the account dashboard, and authenticate the ConvertAPI C# library like this:
ConvertApi convertApi = new ConvertApi("secret_or_token");
Protect Excel using C# in no time!
Once you have your authentication in place, simply copy-paste this xlsx to protect conversion code snippet into your C# project:
Try the conversion online - no coding required!
You can try out advanced conversion parameters and test the conversion result online using our interactive demo tool. This tool will produce the same conversion output as if you were using the library from your solution, and it will auto-generate the code snippet for you!
Try for FREE!Conversion parameters
Sets the password in the output document. Users will be asked to enter this password before MS Office allows them to view the document.