To see what you have downloaded and where to find it:
(PC) Steps:
- Documents
- inZOI
- Canvas
Inside the Canvas folder - you will find the following folders:
MyAppearances
MyFurnitures
MyRooms
MySites
To check the file sizes of decorations or clothing items that you downloaded from Canvas:
Go to Documents
inZOI
Canvas
MyFurnitures
Inside this folder you will find all your downloaded items - each in their own folder - it even has it’s own Thumbnail 
Right click on the .dat file and select properties - there you can see the size.
If you no longer want the item/room/appearance or site - you can delete the folder after checking the thumbnail to make sure it’s correct.
I hope this helps 
