File Encoding Format : ANSI_134_1968 and UTF : 8 Diffrence?

File Encoding Format : ANSI_134_1968 and UTF : 8 Diffrence?

i would like to know what is diffrence between File Encoding Format :
ANSI_134_1968 and UTF : 8.
please let me know your suggection's
thank you.
tousif shaikh