FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -By default, PowerPoint presentations are saved in the . pptx file type. However, there may be times when you need to use another file type, such as a PDF or PowerPoint 97-2003 presentation.

Detailed explanation-2: -The default file format in PowerPoint version 2007 or newer is . pptx. A presentation that you can open on a PC in PowerPoint 2007 and newer versions, or that you can open on a Mac in PowerPoint 2008 and newer versions. You can also open the presentation on any mobile device that has PowerPoint installed.

Detailed explanation-3: -Click the File tab. Click Save As, and then do one of the following: For a presentation that can be opened only in PowerPoint 2010 or PowerPoint 2007, in the Save as type list, select PowerPoint Presentation (*. pptx).

Detailed explanation-4: -PPTX is a zipped, XML-based file format that is part of the Microsoft Office Open XML (also known as OOXML or OpenXML) specification, introduced as part of Microsoft Office 2007 and later. PPTX is the default presentation file format for new PowerPoint presentations.

Detailed explanation-5: -The main difference between PPT and PPTX is that PPT file are saved to disc as binary files whereas PPTX files are saved in Office Open XML format. PPT files save presentation content as binary collection of records and structures. These are arranged in binary streams as described in the PPT file format specifications.