u/Oldysian

I have created a list of items in a game and have placed them into a table with checkboxes in the first column. I use the checkboxes to annotate if I own the item or not. I have 46 total pages separating where each item comes from. I am using the web version of the Excel so I can't use macros unfortunately.

Would it be possible to create a new sheet with a function that creates a list of all the items I don't own from across the entire workbook?