Add Hyperlinks To Range & Link Based On Cell Value

I have a spreadsheet of various works-in-progress items, the first three columns of which refer to relevant documents, effectively the request, the estimate and the work order, i.e. RXXX-0001, EXXX-0001 & WXXX-0001.

So the text is entered as above (without file extension as it's also our reference number), and I'd like each to be linked to their respecive .doc files, which are held in different locations, i.e. \servernamefolderRequests or Estimates or Work Orders
e.g. \servernamefolderRequestsRXXX-0001.doc

There's a backlog of over 300 items (so 900 links) so I don't want to go through and manually create the links and as each day can see over 12 items being created it'd be much easier to have it done at the click of a button

Most of the solutions I've seen involve creating a new cell/button with the hyperlink in it - I just want to effectively "right click, create hyperlink" but with the cell contents inserted as the file name (adding ".doc") and with correct folder name too.

FYI the cells are adjacent to one another e.g. A1, A2 & A3 so the selection can be Offset (0,1) for the estimates and work orders.

I don't mind if it ends up being a case of running the macro on each line - some links have already been created already.