File Formats Used on This Site
Adobe Acrobat Reader (PDF)
Description: Adobe Acrobat Reader is a program that allows users to view files in Portable Document Format (PDF). PDF is a universal file format that preserves the appearance of the original document. PDF files can be easily printed but not easily modified.
File extensions: .pdf
Viewing: If you do not already have Adobe Acrobat, download Acrobat Reader for free.
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Microsoft PowerPoint
Description: Microsoft PowerPoint is a program for creating and viewing presentations and slide shows.
File extensions: .ppt
Viewing: If you do not already have PowerPoint, download PowerPoint Viewer for free.
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RealPlayer
Description: RealPlayer is a program for viewing and listening to audio and video files (including live broadcasts). (Additional information about viewing broadcasts is available in Technical Support for Viewing Webcasts.)
File extensions: .ram, .rm
Viewing/listening: If you do not already have RealPlayer, download RealPlayer for free. (Select "Download the Free RealPlayer Only" on the right side of the page.)
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Microsoft Windows Media Player
Description: Windows Media Player is a program for viewing and listening to audio and video files (including live broadcasts).
File extensions: asf, .asx, .avi, .wma, .wmv, .wm, .wpl, .mpg, .mpeg, .mp3, .mp4
Viewing/listening: If you do not already have Windows Media Player, download Windows Media Player for free.
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Microsoft Word
Description: Microsoft Word is a word processing program used to create and edit text documents. Text in Word documents can be easily modified or copied for use in other applications.
File extensions: .doc
Viewing: If you do not already have Word, download Word Viewer for free.
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Microsoft Excel
Description: Microsoft Excel is a spreadsheet program used to calculate, analyze, and store data. Text in Excel files can be easily modified or copied for use in other applications.
File extensions on this site: .xls
Viewing: If you do not already have Excel, you can download Excel Viewer for free.
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- Page last reviewed: November 6, 2008
- Page last updated: November 6, 2008
- Content source: National Center for Immunization and Respiratory Diseases
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