I am very new to Sharepoint, so I am not very proficient but I am getting there.
I completely didnt get the fact that the Excel spreadsheet was acting as a web accessed document and that the link to the WORD document I was trying to link to would be a URL location, and not as it was before when it was on our own computer.
Therefore I moved all the WORD documents to my sharepoint site to start off with.
I then removed all the hyperlinks from my original spreadsheet while on my computer, then I uploaded this new version to the Sharepoint site.
I then opened the SHAREPOINT spreadsheet on my computer, as the web spreadsheet. With it open on a tab, I then went back to the Sharepoint site, and went to the list of WORD documents i had previously moved across. Right Clicked on each document and clicked
COPY LINK
Then I went to the spreadsheet to the cell I wanted to paste the hyperlink in, right clicked in the cell - clicked Hyperlink to open the small new Hyperlink window and pasted the link into the URL box - first removing anything that was in there to make sure
the box is initially blank, otherwise it duplicates the HTTP wording.
I then repeated this for each document I wanted to link to from my spreadsheet, and now it is all working fine.
Once you realise you are working as web based documents, it all becomes clear, but it just didnt initially click.