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File Formats and Plug-Ins

Wherever possible, we will post information on cms.hhs.gov in open-standard, accessible formats (e.g., HTML). However, there are some areas of the website where specialized media must be used and plug-ins or special viewers may be needed to access the content. Below is a list of file types that are used on the website as well as further information on getting the plug-ins.

A NOTE on viewing and downloading files: Depending on the configuration of your computer, files of the types listed below may:

  1. open inside of your web browser,
  2. open in a new program window, or
  3. ask you where to save the file. If you would like to download a copy of the file to your computer, right-click (on Windows) or command-click (on Macintosh) and choose "Save Target As..." (IE) or "Save Link As..." (Netscape). This will allow you to save a copy of the file to your computer rather than having the file open inside your web browser.

Open Formats

Open formats can be viewed by a number of free or commercial packages.

ZIP / Self-Extracting ZIP
Version: N/A

 

ZIP files are used to simplify the download process by wrapping a number of separate files into a single "wrapper" and compressing the original files by a significant amount.

ZIP and UNZIP software is available from a variety of vendors. Freeware packages available include Aladdin Expander from Aladdin Systems Incorporated and Unzip. Each runs on Windows, MacOS, and Linux systems. Linux and other UNIX systems include ZIP and UNZIP software in the base installation.

 

CSV (Comma Separated Values)
Version: N/A

 

A data format in which each piece of data is separated by a comma. This is a popular format for transferring data from one application to another, because most database and spreadsheet systems are able to import and export comma-delimited data. CSV files can be opened by the majority of spreadsheet and database programs available.

 

RTF (Rich Text Format)
Version: N/A

 

A standard formalized by Microsoft for specifying formatting of documents. RTF files are actually ASCII (plain text) files with special commands to indicate formatting information, such as fonts and margins. RTF files can be opened by the majority of word processing programs available.

 

MP3 (MPEG-1, audio layer 3)
Version: N/A

 

MP3 is a very popular audio format with very high compression (e.g., very small file sizes).

MP3 playing and recording software is available from a variety of software vendors. Quicktime and RealPlayer, listed later on this page, have the ability to play MP3 files. A relatively comprehensive listing can be found at http://software.mp3.com/software/.

 

Proprietary Formats

Proprietary formats require a specific vendor's package to view the files.

Adobe Acrobat / PDF (Portable Document Format)
Version: 5.0/4.0

 

Adobe Acrobat / PDF files are used to retain the formatting of printed documents. To view PDF files, you will need the Adobe Acrobat Reader.

Vendor: Adobe Systems Incorporated
(Plug-In Download | More Information | Support)

NOTE: access.adobe.com is a resource for visually impaired users to better interact with PDF files via specialized accessibility software (e.g., screen readers). access.adobe.com has a number of tools for converting PDFs into other file formats.

 

RealMedia G2 (RealAudio / RealVideo)
Versions: G2 or later

 

RealMedia files are audio and video files designed to stream across the Internet.

Vendor: RealNetworks
(Plug-In Download | More Information | Support)

 

Quicktime
Version: 4

 

Quicktime is an alternative audio / video format. Quicktime files do not stream, but are downloaded to your computer and then played.

Vendor: Apple
(Plug-In Download | More Information | Support)

 

Word
Versions: 97, 2000

 

Word is a popular word processing application. The viewer is available for Windows and MacOS platforms. Additionally, most other office suites (e.g., StarOffice, Lotus, WordPerfect) can read Word files.

Vendor: Microsoft
(Plug-In Download | More Information | Support)

 

WordPerfect
Versions: 5, 6.1, 8

 

WordPerfect is a popular word processing application. Most other office suites (e.g., StarOffice, Lotus, Word) can read WordPerfect files.

Vendor: Corel
(Plug-In Download | More Information | Support)

 

Excel
Versions: 97, 2000

 

Excel is a popular spreadsheet application from Microsoft. Occasionally, tabular data sets will be made available in Excel format. Additionally, most other office suites (e.g., StarOffice, Lotus, WordPerfect) can read Excel files.

Vendor: Microsoft
(Plug-In Download | More Information | Support)

 

Access
Versions: 97, 2000

 

Access is a popular desktop database management program from Microsoft. Large data sets with complex relationships will sometimes be made available for download in Access format. The viewer is available for the Windows and MacOS platforms. Additionally, most other office suites (e.g., StarOffice, Lotus, WordPerfect) can read Access files.

Vendor: Microsoft
(Plug-In Download | More Information | Support)

 

PowerPoint
Versions: 97, 2000

 

PowerPoint is a presentation program from Microsoft. Some conference proceedings and briefing materials will be posted in PowerPoint format. The viewer is available for the Windows and MacOS platforms.

Vendor: Microsoft
(Plug-In Download | More Information | Support)

Last Modified on Thursday, September 16, 2004