C# .NET API to Compress & Decompress ZIP, RAR Files

Getting Started with Aspose.ZIP for .NET

The recommend way to install Aspose.ZIP for .NET is using NuGet. Please use the following command for a smooth installation.

 NuGet\Install-Package Aspose.Zip -Version 23.1.0 

Compress & Extract Archive via .NET API

Aspose.ZIP for .NET gives software developers the capability to compress or extract archives inside their own .NET applications. The library has provided support for some commonly archive format such as ZIP, RAR, 7Zip, GZIP, BZ2 and numerous Linux format such as CPIO, TAR, Lzip, Bzip2, XZ and Z. The library has provided support for several basic and advanced features, such as ZIP files with password, extract a particular file from archive, Unzip Password Protected Zip, apply encryption and decryption, and so on.

using (FileStream zipFile = File.Open(dataDir + "CompressMultipleFiles_out.zip", FileMode.Create))
{
    using (FileStream source1 = File.Open(dataDir + "alice29.txt", FileMode.Open, FileAccess.Read))
    {
        using (FileStream source2 = File.Open(dataDir + "asyoulik.txt", FileMode.Open, FileAccess.Read))
        {
            using (var archive = new Archive())
            {
                archive.CreateEntry("alice29.txt", source1);
                archive.CreateEntry("asyoulik.txt", source2);
                archive.Save(zipFile, new ArchiveSaveOptions() { Encoding = Encoding.ASCII, ArchiveComment = "There are two poems from Canterbury corpus" });
            }
        }
    }
}

Create Password Protected Archive via C#

Aspose.ZIP for .NET enables software developers to compress and decompress files or folders with password protection inside their own C# .NET applications without worrying about the underlying file structure. The library has included several important features related to archive protection and encryption, such as encryption of files with AES192, encryption of files with AES256, password protect directory, encrypt multiple files with mixed encryption techniques, decompress AES encrypted archives, decompress AES encrypted stored archive, decompress encrypted folder to directory, decompress archive having single file, decompress archive having multiple files, extract stored archive without compression.

/using (FileStream zipFile = File.Open(dataDir + "CompressWithTraditionalEncryption_out.zip", FileMode.Create))
{
    using (FileStream source1 = File.Open(dataDir + "alice29.txt", FileMode.Open, FileAccess.Read))
    {
        var archive = new Archive(new ArchiveEntrySettings(null, new TraditionalEncryptionSettings("p@s$")));
        archive.CreateEntry("alice29.txt", source1);
        archive.Save(zipFile);
    }
}

Create self-extracting (SFX) Archive via C#

Aspose.ZIP for .NET has provided software developers the capability for creating and managing a self-extracting (SFX) archive inside their own .NET applications. A self-extracting (SFX) archive is an executable file with an embedded archive that can be extracted automatically after launch. The library has included several important features for handling self-extracting archive such as creating a self-extracting archive instantiate, set password, running self-extracting archive (requires .NET Framework 2.0 or higher) and so on. The library also provided some command line options for self-extracting archive.

 
using (FileStream zipFile = File.Open("archive.exe", FileMode.Create))
{
    using (var archive = new Archive())
    {
        archive.CreateEntry("entry.bin", "data.bin");
        var sfxOptions = new SelfExtractorOptions() 
        { 
          ExtractorTitle = "Extractor", 
          CloseWindowOnExtraction = true, 
          TitleIcon = "C:\pictorgam.ico" 
        };
        archive.Save(zipFile, new ArchiveSaveOptions() { SelfExtractorOptions = sfxOptions });
    }
}

Convert ZIP Archive to Tar.gz, 7z & RAR via .NET API

Aspose.ZIP for .NET enables software developers to convert ZIP Archive to many other file formats with ease such as Tar.gz, 7z, RAR and so on. A tar.gz file is a combination of a .tar file and a .gz file. It is considered one of the most widespread compressed archive formats in the Linux world and on the other hand ZIP is the most popular for Windows. Aspose.ZIP for .NET has provided complete support for extract entries from the ZIP archive and directly put them to the tar.gz archive with just a couple of lines of code. Below examples shows how to achieve this.

 using (Archive source = new Archive("source.zip"))

{

using (TarArchive tar = new TarArchive())
{

foreach (ArchiveEntry entry in source.Entries)
{
if (!entry.IsDirectory)
{
MemoryStream mem = new MemoryStream();
entry.Open().CopyTo(mem); 
tar.CreateEntry(entry.Name, mem);
}
}
tar.SaveGzipped("result.tar.gz");

}

}