C# Ionic.Zip 压缩execl文件成功后解压的时候提示文件已损坏怎么解决

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public static string ZipFiles(string[] sourceFileList, string saveFullPath)
{

        using (ZipFile zip = new ZipFile(saveFullPath, Encoding.UTF8))
        {
            foreach (string fileToZip in sourceFileList)
            {
                string fileName = fileToZip.Substring(fileToZip.LastIndexOf("\\", StringComparison.Ordinal) + 1);
                zip.AddFile(fileToZip, "");
            }
            zip.Save();
        }
        return saveFullPath;
    }