GifSplitter can split gif animation to image file(s) list. Then, you can select any frames of the gif animation, and modify them as you like. Also, GifSplitter will create a .mifl file which can be used in Magic ASCII Studio (http://www.xoyosoft.com
Many downloadable ZIP archives have DIZ and NFO files included within them. GetDiz is a freeware Notepad replacement which can display ASCII art correctly while maintaining an incredible speed, ease of use and small size.
NFOpad is a small, fast and flexible combined nfo viewer and text editor. It is a clone of Microsoft's Notepad but with extra settings and support for nfo files. The file extension is used to determine whether to use an ANSI or ASCII font.