Power Query Extract Issue from csv in Folder

[daleholden]

Hi Guys
I do an export from Magento 2 which is fine but it lumps any custom fields created by us into 1 column. This is a csv and I pop it into a folder and get Power Query to look at the folder.
It looks like this (see below) the field is called additional_attributes. Each row can have different data and a few to many custom fields, but they all have att_supplier_url because I have filtered that.
I want to filter out just att_supplier_url and show its contents ie the url it has listed.
It has the , as a delimeted between each entry to show each custom attribute but i cannot count as each row varies in what it has.
How can i do this in power query?
This below is all in 1 field
att_amz_price=224.970000,att_amz_title=Architect 2300W Rapid Boil 1.5L Kettle and 4 Slice Toaster Set in Oyster White,att_brands=Dualit,att_depth=24 cm,att_ean=Does Not Apply,att_eby_ebaybin=217.970000,att_eby_is_brand=Dualit,att_eby_sc_ebaybin=218.000000,att_eby_sc_title=Architect 1.5L Rapid Boil 2300W Kettle and 4 Slice Toaster Set in Oyster White,att_eby_title=Architect 2300W Rapid Boil 1.5L Kettle and 4 Slice Toaster Set in Oyster White,att_epid=Does Not Apply,att_height=22 cm,att_mpn=Does Not Apply,att_ship_days=4,att_ship_details=ship_4BD,att_supllier=Supplier Online,att_supplier_cost=159.99,att_supplier_url=https://www.supplier.co.uk/Appliances/Small-Kitchen-Appliances/Kettles-Toasters/Dualit-Architect-Kettle-and-Toaster-Set-in-Oyster-White/p/123456,att_width=14 cm,bullet1=Architect Kettle and Toaster Set,bullet2=1.5L Capacity Kettle,bullet3=Rapid boil ,bullet4=4 Slot Toaster,bullet5=Peep & Pop function on Toaster,config_colour=White,config_packs=1 Pack,ebizmarts_mark_visited=Yes,stripe_sub_enabled=No,...

 

[Norie]

What if you select Advanced options when you are splitting the field and select Split into rows?

You would end up with a whole bunch of new rows, one for each custom property, but you could easily filter for the field(s) you want to keep.