# How to change org-mode settings to always include a certain preamble

So currently I have this preamble for all my org files. Does anyone know how to make org-mode default to the above settings whenever I open a .org file?

#+STARTUP: latexpreview


I think you can achieve this through M-x org-customize:

• Entry Org startup / Org startup with latex preview
• Entry Org Export LaTeX / Org Latex Packages Alist

Alist of packages to be inserted in every LaTeX header

• Entry Org Export LaTeX / Org Latex Classes

Alist of LaTeX classes and associated header and structure [...] The HEADER-STRING is the header that will be inserted into the LaTeX file.