I think for newer version, it changes to Telerik.Windows.Documents.FormatProviders.txt. The doc has yet to be updated.
answered on 26 Jan 2012, 05:04 PM
You are partially right.
TxtFormatProvider is included in the Telerik.Windows.Documents assembly, but it is under the namespace Telerik.Windows.Documents.FormatProviders.Txt. Therefore, you don't need any additional assembly references, but the imports/using clause which has to be declared is: