How to Zip and Unzip Single file in C#

Add the System.IO.Compression.ZipFile NuGet to your project



Use this code to Zip and Unzip your file using GZip

static void ZipMyFile(string source, string target)
{
    using (FileStream sourceStream = new FileStream(source, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
    {
        using (FileStream targetStream = File.Create(target))
        {
            using (GZipStream compressionStream = new GZipStream(targetStream, CompressionMode.Compress))
            {
                sourceStream.CopyTo(compressionStream);
            }
        }
    }
}

static void UnzipMyFile(string source, string target)
{
    using (FileStream sourceStream = new FileStream(source, FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
    {
        using (FileStream targetStream = File.Create(target))
        {
            using (GZipStream decompressionStream = new GZipStream(sourceStream, CompressionMode.Decompress))
            {
                decompressionStream.CopyTo(targetStream);
            }
        }
    }
}