This is a unity3d test...
To get the zip file back download the image as file and recode it using this code
static void Main(string[] args)
{
BmpToFile(@"c:\your\download\LA3s5.png", @"code.zip");
}
private static void BmpToFile(string src, string dst)
{
var file = File.OpenWrite(dst);
var bitmap = new Bitmap(src);
var data = bitmap.LockBits(
new Rectangle(0, 0, bitmap.Width, bitmap.Height),
ImageLockMode.WriteOnly,
PixelFormat.Format8bppIndexed);
var line = new byte[data.Stride];
for(var lineCount=0; lineCount< data.Height; lineCount++)
{
Marshal.Copy(data.Scan0 + lineCount* data.Stride,
line, 0, data.Stride);
file.Write(line,0, line.Length);
}
bitmap.UnlockBits(data);
file.Close();
}