Free Ppt Poster Template Does Anyone Know Of A Free Software To Convert Ppt Files To Video?

Does anyone know of a free software to convert ppt files to video? - free ppt poster template

I want to convert PowerPoint format for a small video presentation. I do not want to spend money, so I tried to open the options, but can not find. Has anyone not a free choice, white (open source, freeware, etc.) that I used for this application?