Hi Krishna, It is not possible to export a slide show to any of the video file formats, but, I guess there are some free screen recording softwares available which can be used on that purpose. However, since Since Tekla BIMsight is a free software, you can first create a slideshow. Then save the project as a TBP package and share it with your colleagues. They can in turn open the project with Tekla BIMsight and play the slideshow. And if you want to present the walktrough for yourself, you can simply play it with Tekla BIMsight when giving a presentation. Thanks, Heikki