pptx and ppt files won't open from hyperlinks uploaded on website

[mereswine]

I have uploaded links to powerpoint presentations on a website. Some links are to pptx files and others are to ppt files. 2 problems:

1. The links won't allow me to open the files in the IE browser but require me to save them. I want them to open from the link without making the viewer save them. If you look at "Presentations" here: ppt files open in the browser.  I have already tried to fix this by editing the folder and file options in "my Computer/tools/folders)" to open in browser. This is set for the ppt files but the option was greyed out for the pptx files. This didn't change the behavior of the links on the conference.htm page. I am using IE 7 as a browser. I am using Dreamweaver for web development/authoring.

1. The ppt and pptx actually won't open at all, even after saving them. I get the message that "PowerPoint can't read the outline from ..........No text converter is installed for this file type."

I have saved the pptx and ppt files to my hard drive from their original source.  When I open them directly from the hard drive, they open perfectly. No problem.  After I upload them as hyperlinks using CuteFTP, the links won't open when saved to to hard drive and I get the above-stated message.

I have uploaded the latest MicroSoft Office updates. This seems to allow the files to open directly from the hard drive, but not downloaded from the web server.

The web server is pair.com.  I have uploaded custom mime to this website to address the ppt and pptx files:

application/vnd.ms-powerpoint pptx

application/vnd.ms-excel xlsx

In short, the uploaded ppt and pptx files behave as if they have been corrupted. I have never had this problem before when uploading ppt files and links to this site.  I've read support on CuteFTP, Pair, MicroSoft, etc. and can't figure it out. I would appreciate help with this problem.  Thank you.

[edwardean · Accepted solution]

I would prefer guide below or another methods are proposed from different sources over Internet, but in case the guide from MS Corporation can't handle the problem

https://www.openfiletool.com/pptxopen.html PPTX Open File Tool

http://itknowledgeexchange.techtarget.com/itanswers/how-to-open-powerpoint-file/

http://community.office365.com/en-us/f/172/t/268740.aspx

1. Open the PowerPoint file in question and go to File > Save As and select type Web Page (.htm, .html). Save in the same location as your file.
2. Quit PowerPoint.
3. Open the html file in PowerPoint.
4. Again, go to File > Save As and select file type Presentation (.ppt). When prompted, click Yes to overwriting your previous file.
5. Republish.