Docx Validation error: The element has invalid child element http://schemas.openxmlformats.org/wordprocessingml/2006/main:rtl

[lucasonni]

Hi, attached is the file that is not validated, with the following error:

The element has invalid child element http://schemas.openxmlformats.org/wordprocessingml/2006/main:rtl

Below is the code:

Stream fileStream = new MemoryStream(Convert.FromBase64String(documento.StringBase64));
string errorDescription = "";
WordprocessingDocument? wordprocessingDocument = null;
int count = 0;
try
{
wordprocessingDocument = WordprocessingDocument.Open(fileStream, false);
OpenXmlValidator validator = new OpenXmlValidator(DocumentFormat.OpenXml.FileFormatVersions.Microsoft365);
foreach (ValidationErrorInfo error in validator.Validate(wordprocessingDocument))
{
count++;
if (count == 1)
errorDescription = "Description: " + error.Description;
else
errorDescription += error.Description;
}
}
catch (Exception ex)
{
count++;
errorDescription = ex.Message;
}
finally
{
if(wordprocessingDocument is not null)
wordprocessingDocument.Dispose();
}

I also tried with the other supported versions of the Word format, from Office2007 to Office2021, with the same error.

Can anyone help me understand?

Thanks!
Luca

TextControlDoc.docx

[twsouthwick]

Where is this file coming from? Sounds like it has invalid markup - do you have a reason to believe it is wrong?