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Adobe Acrobat Reader 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.
Microsoft PowerPoint 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.
Microsoft Word 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.
Corel WordPerfect Corel WordPerfect
Description: Corel WordPerfect is a word processing program used to create and edit text documents. Text in WordPerfect documents can be easily modified or copied for use in other applications.
File extensions: .wpd
RealOne Player RealOne Player (formerly RealPlayer)

Description: RealOne Player 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 RealOne Player or RealPlayer, download RealOne Player for free. (Select "Download the Free RealOne Player Only" on the right side of the page.)

Windows Media Player icon 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: .wmv, .asx
Viewing/listening: If you do not already have Windows Media Player, download Windows Media Player for free.
Microsoft Excel 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: .xls
Viewing: If you do not already have Excel, download Excel Viewer for free.
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Page last modified December 23, 2003

    
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Centers for Disease Control and Prevention, 1600 Clifton Rd, Atlanta, GA 30333, U.S.A
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