Double Commander - Double Commander is a cross-platform open source file manager with two panels side by side.
Online Convert PPTX to MP4 - Online Convert allows you to convert any Microsoft PowerPoint 2007 PPTX file to MP4 easily.
Total Commander - A Shareware file manager for Windows® 95/98/ME/NT/2000/XP/Vista/7, and Windows® 3.1.
Converter365 Convert PPT to MP4 - Converter365 is an online freeware converter tool that enables you to convert PPT to MP4 with great ease.
XYplorer - File Manager for Windows
iSpring Convert - Convert PowerPoint to HTML5 and MP4 video