It could be either PowerPoint 2007 or 2010.
.pptx
.pptx
powerpoint extended or in short ppt extended
It is the extension which is used to save PowerPoint.
.pptx is for Pwerpoint 2007 and onwards, including Powerpoint 2013.
Open your 2003 PowerPoint in Powerpoint 2007Go to filesave as...replace the old PowerPoint and make sure the new PowerPoint save as type says PowerPoint 2007 or .pptx or something similar to this
Up to version 2003 Word was .doc, Excel was .xls and Powerpoint was .ppt but that change when 2007 came along. An x was added to each one so Word is .docx, Excel is .xlsx and Powerpoint is .pptx now.Up to version 2003 Word was .doc, Excel was .xls and Powerpoint was .ppt but that change when 2007 came along. An x was added to each one so Word is .docx, Excel is .xlsx and Powerpoint is .pptx now.Up to version 2003 Word was .doc, Excel was .xls and Powerpoint was .ppt but that change when 2007 came along. An x was added to each one so Word is .docx, Excel is .xlsx and Powerpoint is .pptx now.Up to version 2003 Word was .doc, Excel was .xls and Powerpoint was .ppt but that change when 2007 came along. An x was added to each one so Word is .docx, Excel is .xlsx and Powerpoint is .pptx now.Up to version 2003 Word was .doc, Excel was .xls and Powerpoint was .ppt but that change when 2007 came along. An x was added to each one so Word is .docx, Excel is .xlsx and Powerpoint is .pptx now.Up to version 2003 Word was .doc, Excel was .xls and Powerpoint was .ppt but that change when 2007 came along. An x was added to each one so Word is .docx, Excel is .xlsx and Powerpoint is .pptx now.Up to version 2003 Word was .doc, Excel was .xls and Powerpoint was .ppt but that change when 2007 came along. An x was added to each one so Word is .docx, Excel is .xlsx and Powerpoint is .pptx now.Up to version 2003 Word was .doc, Excel was .xls and Powerpoint was .ppt but that change when 2007 came along. An x was added to each one so Word is .docx, Excel is .xlsx and Powerpoint is .pptx now.Up to version 2003 Word was .doc, Excel was .xls and Powerpoint was .ppt but that change when 2007 came along. An x was added to each one so Word is .docx, Excel is .xlsx and Powerpoint is .pptx now.Up to version 2003 Word was .doc, Excel was .xls and Powerpoint was .ppt but that change when 2007 came along. An x was added to each one so Word is .docx, Excel is .xlsx and Powerpoint is .pptx now.Up to version 2003 Word was .doc, Excel was .xls and Powerpoint was .ppt but that change when 2007 came along. An x was added to each one so Word is .docx, Excel is .xlsx and Powerpoint is .pptx now.
The earlier extension in power point was PPT. The newer extension is PPTX in power point.
if it's a new PowerPoint version, it has a file name of .pptx, but in general, it's called a PowerPoint.
In Microsoft Office 2007 and 2010, the extension is .pptx, whereas in earlier versions it was .ppt.
You may open powerpoint documents due to tool below. It must assist you to solve out any problems with opening powerpoint files.
I believe the default is .pptx (The old default used to be .ppt)