Can not convert ppt to pptx


I’m trying to convert ppt to pptx using Aspose.Slides for .Net.
My code is very simple

Dim pres As Presentation = New Presentation(“Aspose.ppt”)

but it is giving exception on second line :

This export format is not implemented for PPT yet.

Hi Purnima,

I have observed the issue shared by you and request you to please try using Aspose.Slides for .NET 14.10.0 on your end. If there is still an issue then please share the sample presentation with us and I will investigate that on my end to help you further in this regard.

Many Thanks,


It worked with the latest dll.

Thank You,