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PPTX PPTX (Document)

File extension .pptx
Category Document File
Description As part of Microsoft's 2007 suite another open XML document type was introduced. This time in the PowerPoint sphere, PPTX is a Presentation format that stores slides used for slide shows or presentations; like a normal PPT format it may include text, images, and other media; however PPTX is based on the Open XML format and uses ZIP compression for smaller file sizes
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Technical Details A PPTX file is quite unique. The specifications for PPTX are in the ECMA-376 standard for Office Open XML. You can make a PPTX file by zipping up a directory, but the material in the directory has to match an OPC structure, including subfolders that have the content in XML format. Any application that supports XML can access and work with data in the new file format. Just like the DOCX file format, PPTX improves file and data management and data recovery.
Associated programs
  • Apple Keynote
  • OpenOffice
  • Microsoft PowerPoint
Developed by Microsoft
MIME type
  • application/vnd.openxmlformats-officedocument.presentationml.presentation
Useful links

SWF SWF (Document)

File extension .swf
Category Document File
Description SWF files are often pronounced Swiff files, they were developed by Macromedia which is now owned by Adobe. A SWF file is a small file that displays animated vector graphics. It can also contain text as well as raster vector graphics. It can be played in Web browsers that has the Flash plug-in installed.
Actions
Technical Details SWF files are stored in files with the extension .swf and currently for historical reasons the MIME type is application/x-shockwave-flash. SWF files are binary files stored as 8-bit bytes. The latest version of SWF is SWF10. According to the Adobe development center this specification expands text capabilities with support for bidirectional text and complex scripts with the new DefineFont4 tag. The DefineBitsJPEG4 tag allows embedding JPEG images that have an alpha channel for opacity and also a smoothing filter. Adobe are always looking to enhance the SWF file format.
Associated programs
  • Adobe Flash Player (standalone program)
  • Web browser with the Flash plug-in installed
Developed by FutureWave Software
MIME type
  • application/x-shockwave-flash
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