To run/compile a .tex document on a computere native instead of on online services such as Overleaf you need two things:
- A IDE (Integrated development environment) or a text editor.
- A compiler. A compiler takes the code, images and text and converts it to your chosen format (
PDF, DVI, HTML, etc).
- There are several compilers such as
pdflatex, xelatex, lualatex, etc. But the most common and popular one is pdflatex. Usually the standard/pre-chosen choosen in your IDE.
- The easiest way to obtain the compilers is to download and install packages of the latex environment. There are two popular choices that include everthing you need to compile a basic document: MiKTeX link and TeX Live link (I personally prefer TeX Live as it includes ALL packages for
\usepackage{} that you will probably ever use).
So you install both the editor (which you say you have) and a compiler package such as Tex Live. When that is done and you have both of the necessary things installed so you can try to compile your document in TeXstudio (TeXstudio user manual). To compile the document there should be a play/arrow button as in the image belove.

If this does not work you look at the messages or log tabs to find out what went wrong. It will tell you if the compiler is not set up or if there is something wrong with your syntax.
If you chose a text editor to write/code your document you would have to use the terminal to compile your document, so if you are new to this sort of things stick to a IDE as TeXstudio.
.xtxfile should not be a problem, as it has the same syntax as any other.texfiles as far as I can see. The.clsfile is just for styling the document, and uses the same syntax as other.texfiles. – Niklas Aug 16 '19 at 07:13deedy-resume.clsandcv_12.textoo... but I cant compile my document. D o I have to install all packages on my TeXStudio? – Madson Ferreira Sep 13 '19 at 19:14