Q1: PowerPoint Problem - .pptx and .ppt?
I'm taking an online course and my instructor wanted us to attach a PowerPoint we made. Well, at home I made it using powerpoint 2007 and most people in the class (who need to be able to view it) use PPT 2003. Well I saved the powerpoint and it showed up as blahblahblah.pptx instead of blahblahblah.ppt. My instructor said in .pptx, most people cannot view it so I need to change it to .ppt file..........how?

Q2: How do you convert .pptx file into ppt file?
i have powerpoint 2007 and i need to send it through my email to get it to school which has windows xp and powerpoint 97-2003. how do you convert it

In fact, PPTX file can be directly saved as PPT. You only need to click file menu, then choose “save as”>>> ”for 97-2003 Presentation” then you can save PPTX file to PPT.
But only one PPTX file can be saved as PPT one time. How to batch convert PPTX to PPT. I think you can choose a PPTX to PPT Converter.

If you want to know how to convert PPTX to PPT with PPTX to PPT Converter, you visit this passage: How to convert PPTX to PPT with PowerPoint 2007 to PowerPoint 2003 Converter?

Maybe you also want to know how to upload PPT to website or play PowerPoint on iPad.