There are two ways:
In your Access database, in Tables, go to Datasheet View and go to Insert in
your toolbar up above and select Hyperlink Column or, in Tables, go to Design
View and select the field that you want to have spreadsheets attached to. In
the Data Type column, select Hyperlink from the drop down arrow. While in
Datasheet View, select the record that you want to attach a spreadsheet to.
Go into your hyperlink field/column and either select Insert Hyperlink from
your toolbar up above or right click and select Hyperlink, Edit Hyperlink.
It is self-explanatory from there. The only thing to remember is that this
field/column will be a hyperlink field. You will not be able to enter any
other data in it besides hyperlinks.
Let me know if you need any help.
Janice