Bill has it right: The URL in the "calling" link MUST ALWAYS agree with the URL (filename and location) of the called file. If there's a mismatch between the two, the link won't work. This is an immutable rule of the "a href" (linking) tag; see https://www.w3schools.com/tags/att_a_href.asp. The kind of called content doesn't matter; it can be a text file, another HTML page, a picture, or a PDF. For a file that needs to be updated frequently, you can go either of two, maybe three, ways: 1. Change the link every time to agree with the new filename; or 2. Change (or "save as") the filename to agree with the link; or 3. Create an intermediate page to update the URL each time the called file is updated and saved with a new name. Frankly, I think the second way is easier -- especially if the the file is linked from more than one place. -rt_/)