Add Files to Existing Archive

VB C#

using IronZip;

// Open existing ZIP and export ZIP
using (var archive = IronArchive.FromFile("existing.zip", "result.zip"))
{
    // Add files
    archive.AddArchiveEntry("./assets/image3.png");
    archive.AddArchiveEntry("./assets/image4.png");
}

Imports IronZip

' Open existing ZIP and export ZIP
Using archive = IronArchive.FromFile("existing.zip", "result.zip")
	' Add files
	archive.AddArchiveEntry("./assets/image3.png")
	archive.AddArchiveEntry("./assets/image4.png")
End Using

Install-Package IronZip

Add Files to Existing Archive

IronZip also allows the capability to modify an existing ZIP file. Begin by using the FromFile method to access the archive you wish to modify. This method not only opens the current ZIP but also lets you specify the name of the new archive to be generated as output. After opening the archive, you can use the AddArchiveEntry method to include files in the existing archive.

This feature enables you to easily update and expand your ZIP archives to accommodate your project's changing requirements. IronZip simplifies archive management in your C# projects.