Password Protected Excel Download using EPPLUS

Question

I am exporting data in Excel form using EPPLUS Excel Library. I want that when excel downloaded it will ask for password. I have tried following code.

Answer 1

If you are saving the excel package into a MemoryStream (for sending as an email attachment) you have to do this:

excelPackage.SaveAs(memoryStream, "pa$$w0rd");

Answer 2

It's not documented, but you can do as following:

package.Encryption.Password = "your password here";

Then serve your package with Save() or GetAsByteArray() of your choice

Answer 3

package.GetAsByteArray("sometest"); ---> this will protect your excel sheet with password sometest :)

Answer 4

Just need to use the .Save overload with a password as the option:

package.Save("password");

Response To Comments

To apply a password if saving via a byte array it is very similar:

Byte[] bin = pck.GetAsByteArray("password");
System.IO.File.WriteAllBytes(fullFilePath, bin);