An error while opening a file

[Tobito]

I am suddenly unable to open a .pdn file. It has not been touched since 3 or 4 days ago, I was able to edit it without issue then.

 

Here is the error message:

 

System.Xml.XmlException: '', hexadecimal value 0x1B, is an invalid character. Line 1, position 4095.

   at System.Xml.XmlTextReaderImpl.Throw(Exception e)

   at System.Xml.XmlTextReaderImpl.ParseAttributeValueSlow(Int32 curPos, Char quoteChar, NodeData attr)

   at System.Xml.XmlTextReaderImpl.ParseAttributes()

   at System.Xml.XmlTextReaderImpl.ParseElement()

   at System.Xml.XmlTextReaderImpl.ParseElementContent()

   at System.Xml.XmlLoader.LoadNode(Boolean skipOverWhitespace)

   at System.Xml.XmlLoader.LoadDocSequence(XmlDocument parentDoc)

   at System.Xml.XmlDocument.Load(XmlReader reader)

   at System.Xml.XmlDocument.LoadXml(String xml)

   at PaintDotNet.Document.FromStream(Stream stream) in D:\src\pdn\src\Data\Document.cs:line 1397

   at PaintDotNet.FileType.Load(Stream input) in D:\src\pdn\src\Data\FileType.cs:line 496

   at PaintDotNet.Functional.Func.Eval[T1,TRet](Func`2 f, T1 arg1) in D:\src\pdn\src\Base\Functional\Func.cs:line 158

 

 

Is there any way to fix such an issue or recover the file's contents?