Âthe first line in a hypertext markup language (html) file is the which is a processing instruction indicating the markup language used in a document.

The first line in a hypertext markup language (html) file is the Doctype, which is a processing instruction indicating the markup language used in a document.

The correct answer is:

Doctype

Explanation:

The Doctype is the abbreviation for document type declaration which is an instruction related to XML and SGML documents that makes them adopt a document type definition to be shown as an element compatible in that format. In other words, it allows them to be from one type and be translated into another type without visual or presentation modification. It is just to be more flexible, fast, and manipulable.

the information on wikis belongs to the ".info (tdls)" domain.

credit to ace:  

batradivjyot25.  

a macro is a tool that allows you to automate tasks and add functionality to your forms, reports, and controls. for example, if you add a command button to a form, you associate the button's onclick event to a macro, and the macro contains the commands that you want the button to perform each time it is clicked.