Error on load book then is has windows-1521 codepage.

[palacex]

Console application raise System.Xml.XmlExceptiong when book has codepage like windows-1251.

The .NET Framework for the Windows desktop supports a large set of Unicode and code page encodings. .NET Core, on the other hand, supports only the following encodings:

    ASCII (code page 20127), which is returned by the Encoding.ASCII property.
    ISO-8859-1 (code page 28591).
    UTF-7 (code page 65000), which is returned by the Encoding.UTF7 property.
    UTF-8 (code page 65001), which is returned by the Encoding.UTF8 property.
    UTF-16 and UTF-16LE (code page 1200), which is returned by the Encoding.Unicode property.
    UTF-16BE (code page 1201), which is instantiated by calling the UnicodeEncoding.UnicodeEncoding or UnicodeEncoding.UnicodeEncoding constructor with a bigEndian value of true.
    UTF-32 and UTF-32LE (code page 12000), which is returned by the Encoding.UTF32 property.
    UTF-32BE (code page 12001), which is instantiated by calling an UTF32Encoding constructor that has a bigEndian parameter and providing a value of true in the method call.