Select the document in the File
Explorer 
tab in the left pane.
Select the Hyperlinks
tab in right pane.
You can list and edit hyperlinks contained in the selected part, assembly, or drawing document.
To edit hyperlinks:
Select the document in the File
Explorer tab in the left pane.
Select the Hyperlinks
tab in right pane.
A list of the document's hyperlinks appears.
You can save the contents
of the list to a text file by clicking Save
to File 
(SolidWorks Explorer toolbar).
Right-click and select Change, then type to edit the hyperlink.