Present a list as a "tree"

The dirtree package is ideally suited for this, and the input is quite simple: each line consists of a . prefix, the level number, the text of the item and a final ..

.<level> Text.

e.g.

\documentclass{article}
\usepackage{dirtree}
\begin{document}
\dirtree{% This % is required
.1 Root. 
.2 First Level.
.2 First level.
.3 Second level.
.3 Second level.
.2 First level.
}
\end{document}

\documentclass[border=5pt]{standalone}
\usepackage{forest}
\begin{document}
\begin{forest}
 for tree={
font=\sffamily,
grow'=0,
child anchor=west,
parent anchor=south,
anchor=west,
calign=first,
edge path={
  \noexpand\path [draw, \forestoption{edge}]
  (!u.south west) +(7.5pt,0) |- node[fill,inner sep=1.25pt] {} (.child anchor)\forestoption{edge label};
},
before typesetting nodes={
  if n=1
    {insert before={[,phantom]}}
    {}
},
fit=band,
before computing xy={l=15pt},
}
[Corporate Operations
[Trade Finance
[Import LCs
[Issuance of Import LCs
[Pre-Advice of Import LCs]
 [Pre-Advice to Issue/List of Pre-Advised LCs]
[Issue of Sight Payment LCs]
[Issue of Usance LCs]
[Issue of Negotiation LCs]
[Issue of Mixed Payment LCs]
[Issue of Stand By LCs]
[Issue internet LCs]
]
]
]
]
\end{forest}
\end{document}