Approach to Work Intranet

I maintain the intranet for an engineering company. The most tedious aspect is adding links to new or updated spreadsheets and pdfs. We have a drive that contains all of the documents and spreadsheets in a logical folder structure. Then we have a simple html based web page that has links to these docs. I feel like there is a more efficient way to do this without having to manually tweak the html every time you add/update/move a file. I'm sure this can be done with PHP, Python or something similar, but I'm not sure they'll want to run anything like that, and I don't have the time to completely overhaul with a new language. Is there something a little more pre-configured for this type of situation?

Thanks in advance.