GZipStream doesn't read the whole file

Question

Using GZipStream to open downloaded gzip files and get the xml file inside.

Problem is that sometimes the whole xml file isn't extracted by my code:

    private static string Unzip(string fileToUnzip, string format)
    {
        string unzippedFileName = fileToUnzip.Replace(".zip", format);

        FileInfo fi = new FileInfo(fileToUnzip);

        using (FileStream inFile = fi.OpenRead())
        {
            try
            {
                using (FileStream outFile = File.Create(unzippedFileName))
                {
                    using (GZipStream Decompress = new GZipStream(inFile,
                            CompressionMode.Decompress, true))
                    {
                        Decompress.CopyTo(outFile);
                    }
                }
            }
            catch(Exception ex)
            {
                int k = 0;
            }
        }

        return unzippedFileName;
    }

There is nothing wrong with the gzip files, I can get the xml fil manually using WinRAR.

No exceptions are thrown.

Any ideas for what is going wrong?

Answer 1

Using 7-zip fixed the problem.

See GZipStream not reading the whole file

Thanks Anders Forsgren!