The file extension PPTX is associated with the Microsoft PowerPoint presentation application. PowerPoint is part of the Microsoft Office Suite of productivity applications and is used to create professionally finished presentations and slideshows.
The file extension can be classified as a document file type or it can be defined as an encoded and encrypted file type. If a PPTX file is a document file type, it is a file which has been created using the PowerPoint presentation application. This type of PPTX file can contain text, images, font styles, templates, video clips, audio clips, animations, and other elements which are used to create a professional presentation.
If the file extension PPTX is saved in an XML (Extensible Markup Language) format, it is classified as a document file which contains the same contents as described above. PPTX files which are saved in an XML format will contain the extension PPTXML. XML is a format which is used to store data in convenient format for use with other applications. PPTXML files are created with PowerPoint and then exported to an XML format using the XML option on the Save menu.
If the file extension PPTX is defined as an encoded and encrypted file type, the file will use the extension PPTXENX and contain the same elements as the files described above which are created with PowerPoint. The only difference is that the PPTX file has been encrypted using the Egis encoding and encrypting application. This prevents unauthorized access to a PPTX file since the file must be opened using a unique passcode.
How to Open PPTX Files
The PPTX file extension can be opened using a variety of different software applications which are PPTX compatible. The most common way to open a PPTX file is by using Microsoft PowerPoint which is compatible with the Windows operating system and Mac OS X. If you are using Windows, you can open PPTX files using PowerPoint 2010, and for Mac OS X you should use PowerPoint 2011.
If the file extension PPTX has been changed to PPTXML, you can still use Microsoft PowerPoint to open the file. Since the PPTX file is in an XML format, you can open it using a web browser since the file is an open document and designed to be used with web applications.
The PPTX file can also be opened using Presentation, which is part of the OpenOffice suite of productivity applications. OpenOffice is an open source suite that provides functions which are similar to Microsoft Office and is available as a free download on the OpenOffice.org website. OpenOffice is compatible with Windows, Mac OS X, and the Linux operating system.
If the file extension PPTX is encrypted using the Egis software application, PPTXENX files can only be opened using the passcode which was created with Egis. Egis is commonly bundled with the Acer eData Security Management package which is preinstalled on Acer devices. Egis is also available on the Egis Technology website and is compatible with the Windows operating system.