Labelling of attachments on a page - Best practice?

[wbsmjcp]

Hello,
I am reviewing a section of our website where we store relevant attachments.
For example, there might be an .rmd file, followed by a slide deck, followed by a .docx.
The current label indicates that by clicking on a link, it 'downloads' the file. However, with different browsers, OS, and personal settings, devices, and file types, this experience may vary. We have adjusted the anchor tags so that certain files we do not want to open in the browser should be forced to download; however, some file types like PDF will open in the browser for some people regardless.
What is the best practice for labelling links in this way to ensure that there is clarity?