OK, here's some tips that might help you on the way to a solution. I'm using LibreOffice and I do not have access to Word or Excel; I'll be using "Writer" and "Calc"
First, you can embed a spreadsheet in a Writer document. This is done by "Insert → Object → OLE Object" in Writer, it's probably similar in Word. This embedded document may be "full" which will appear as a table might, or it can be an icon which when clicked will open in Calc.
Second, you can embed a specific cell from a Calc file into a Writer document (whether or not the files are linked as above). This is done by copying the cell in the Calc document (or embedded table) and then pasting it into the Writer document using "Paste Special…", then chosing "DDE Link". The resulting text will be live-linked to its source in the spreadsheet.
Hopefully these two tidbits will help you.