ASCII (American Standard Code for Information Interchange)
ASCII is the most common format for text files in computers and on the Internet. In an ASCII file, each alphabetic, numeric, or special character is represented with a 7 number (a string of seven 0s or 1s). 128 possible characters are defined.
ASCII files are text files put into a standardized format so that information can be imported into programs other than the program in which the data originated. The two most common types are Fixed-width format and Delimited formats. Delimited formats include CSV format (comma-separated value.