xpsdocument - XPSDocument パッケージを開くときに「ファイルに破損したデータが含まれています」という例外が発生する

Question

コンソール アプリケーション内で例外が発生しています

HResult -2146233033 InnerException  null 
Message File contains corrupted data. 
Source  WindowsBase SourceUri   null StackTrace    at MS.Internal.IO.Zip.ZipIOEndOfCentralDirectoryBlock.FindPosition(Stream archiveStream)    at MS.Internal.IO.Zip.ZipIOEndOfCentralDirectoryBlock.SeekableLoad(ZipIOBlockManager blockManager)    at MS.Internal.IO.Zip.ZipArchive..ctor(Stream archiveStream, FileMode mode, FileAccess access, Boolean streaming, Boolean ownStream)    at MS.Internal.IO.Zip.ZipArchive.OpenOnStream(Stream stream, FileMode mode, FileAccess access, Boolean streaming)    at System.IO.Packaging.ZipPackage..ctor(Stream s, FileMode mode, FileAccess access, Boolean streaming)    at System.IO.Packaging.Package.Open(Stream stream, FileMode packageMode, FileAccess packageAccess, Boolean streaming)  

これを回答で調べてみましたが、役に立ちませんでした。

string xpsfilename = @"D:\test\sample_file.xps";

var webClient = new System.Net.WebClient();

var data = webClient.DownloadData(xpsfilename);
//var data = File.ReadAllBytes(xpsfilename);
using (MemoryStream stream = new System.IO.MemoryStream(data))
{
    var package = System.IO.Packaging.Package.Open(stream); /* Exception thrown here */
    var xpsDocument = new System.Windows.Xps.Packaging.XpsDocument(package, System.IO.Packaging.CompressionOption.SuperFast, xpsfilename);
    var sequence = xpsDocument.GetFixedDocumentSequence();

    SaveDocumentPagesToImages(sequence, @"D:\test");
}