I would like to suggest a 3rd-party tool, Kernel for PowerPoint Recovery. It gives you best and effective solution for recovering damaged or inaccessible PowerPoint files. It is specially designed to fix all corruption issues. It contains many advanced features and user-friendly GUI which help users perform maximum possible recovery from corrupted PowerPoint files. It supports presentation files having .ppt, .pptx, .pps, .ppsx, and .pot file formats.
If your PPT files has been corrupted or damaged and you want to repair it, then I would like to suggest you at the first, try to open and repair the corrupted presentation files by using built-in repair feature of MS PowerPoint. If you don't get the solution, then try 3rd-party tool, PowerPoint Recovery software for repairing corrupt PPT files having .ppt, .pptx, .pps, .ppsx, and .pot file formats.
Powerful Powerpoint Recovery Tool which can easily ensures complete recovery of lost, deleted, formatted, and corrupted PowerPoint files. It is an effective software that proffers complete productivity to it's users. This expert program provides comprehensive techniques to recover data. It extracts data from corrupt .ppt file and creates new .ppt file with the data extracted. It also creates a text file containing data extracted from .ppt file.
In this blog post, you'll learn how to repair PowerPoint file manually. Microsoft PowerPoint has few built-in repair features and functions which can repair corrupt PowerPoint file. You must read the blog post shared above for detail information. I hope it would be helpful here.
Check out PowerPoint recovery tool, which is an third party tool and repairs damaged PPT files and recover data that has been lost during corruption. Software is available in free version, you can explore the features by downloading it.