Step 1: Add Files (.ppt, .pptx).
Add Files - In this step you can add MS PowerPoint files like .ppt, .pptx. You need click on "Add file" and a dialogue box of files will be shown from where you can select the files. You can also select a whole consisting of word files by clicking on "Add Folder".
Click on folder option button, a window will be open there you can change output file location.
After click on "start"