TVHeadend EPG guide data


I have setup up tvheadend on my synology NAS and channels added via IPTV are all working good.
However i cannot get any epg data to show for the IPTV channels.

My provider supplys a link to weekly epg data in form of a weblink:

Any ideas how to get the data into tvheadend?
Works ok if i add the playlist and guide data into iptv simple client on coreelec, but would like to centralise everything for the various corelec boxes at home, also simple iptv client doesnt record.

Thank you