Hello,
We are getting the following Exception while processing (probably) excel document:
Object synchronization method was called from an unsynchronized block of code.
at . ()
at GroupDocs.Viewer.Handler.ViewerHandler`1.( )
at GroupDocs.Viewer.Handler.ViewerHandler`1.GetPages(Stream fileStream, String fileName, RenderOptions renderOptions)
.NET GroupDocs.Viewer 18.10.0
Unfortunately, I cannot get document itself.