Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Erika Rasure is globally-recognized as a ...

Declare a symbol as a footer in the table and specify the order of the footers. FOOTER Declare a symbol as a header in the table and specify the order of the headers. HEADER Define a symbol that ...

In C programming, a source code file that contains common definitions and data structures that all programmers may use as required. Also called "include files," because the #include statement is used ...

(1) The text at the beginning of an email message. The header is generated by the client mail program that first sends it and by all the mail servers en route to the destination. Each node adds more ...