ANSI - American National Standards Institute is organization of American industry and business groups dedicated to the development of trade and communication standards. ANSI sets standards for programming languages to use when porting programs. Internationally, ANSI is the American representative to the International Organization for Standardization.
The ANSI character code chart lists the extended character set of most of the programs used by Windows. The codes of the ANSI (American National Standards Institute) character set from 32 through 126 are displayable characters from the ASCII character set. The ANSI characters displayed as solid blocks are undefined characters and may appear differently on output devices.