For any reseacher or publisher Latex is the most important tool, for all MS / PhD Students who want to deal with big thesis Latex is the only solution. I use Latex interchangeably with Miktex which is shown below.
To start with please download the below files and install in the same order:
texstudio2.8.6_win_qt5.3.1
https://www.texstudio.org/
basic-miktex-2.9.5105-x64
https://miktex.org/download
First step is to run Texstudios as shown in: http://docs.miktex.org/2.9/manual/localguide.html#gettingstarted
Second step: Opening an old file to get the syntax:
The extension for these files is .tex
\documentclass{article}
\title{Proposed Change g}
\author{Shivgan}
\begin{document}
\maketitle
\section{Introduction}
The new section below
\section{New Formulas}
Given below are the formulas for standard deviations.
\[Stdeev (P_{n}-P_{n+1}) \]
\[ \frac{P_{n+1}- P_{n}}{P_{n}}\]
\section{Conclusion}
Not much of a paper, but it's a start.
\end{document}
The above code in italic is the first code you should execute.
This begins your journey in Latex.