The format option HTML will interpret the text as HTML. If the setting Enable Protection against Cross-Site-Scripting
has been set, this will prevent information, from a context in which it
is not trusted, being inserted into a context in which it would be
classified as trustworthy.
If the Text option is selected, unformatted text will be shown.
With a value of -1, all characters
will be shown. Ellipsis defines in this context the
character(s) that will be attached to the end of text if the text
exceeds the maximum text length. With the Wordwrap
option, the ability of a text link to take up multiple lines in the
browser can be allowed or prevented. The selection Inherit means
that this property will be controlled via CSS.
All information on this topic can be found here: