ATView is an excellent freeware all in one File Viewer for Windows that allows you to open and view any type of document/file without needing a separate viewer program for each document/file type. You can open Office documents, PDF files, Audio/video content from ATVIew itself.
This helps in saving disk space by eliminating the need for multiple programs as well as reducing the clutter on your desktop.

It supports the following file types:

-Text/Binary/Hex/Unicode: all files, with unlimited file size (even 4Gb+ sizes are allowed);
-RTF/UTF-8: RTF and UTF-8 encoded texts;
-Image: all general graphics formats: BMP JPG GIF PNG TGA TIFF etc;
-Multimedia: all formats supported by MS Window Media Player: AVI MPG WMV MP3 MIDI etc;
-Internet: all formats supported by MS Internet Explorer: HTML XML DOC XLS etc;
-Plugins: all formats supported by Total Commander Lister plugins such as MS Office, PDF, OpenOffice, Flash (FLV/SWF), TTF, EXE, DLL, etc

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