QlikSense Local or Entreprise?
Local: Yust map the sharrepoint URL to the documents as a network drive. Or use the UNC-Path of the sharepoint and create a new data folder.
If the URL to your sharepoint is https://mySharePoint.com/Site1/Shared%20Documents/ than the UNC is \\mySharePoint.com\sites\Site1\Shared%20Documents\- That's it!
Entreprise: Same thing, just remember to enable the servie user on the SharePoint