Did you buy a small business that is not software/tech but just has a informational/marketing website ? If yes, then it is most likely a simple "static website"

Did you buy a small business that is not software/tech but just has a informational/marketing website ? If yes, then it is most likely a simple "static website" with pages in HTML (what renders on the browser). It may also be something like a .php file that is easily available to render on many web hosts. To help you more, you need to first tell us what is the file extension (is it ending with .html or something like .php or something else). We can then help you more on how to edit them.