Pocket count is the first decision and it should match a system you already use — twelve for months, twenty-six for alphabetical, five or six for a small project split. More pockets than you need makes the folder harder to search, not easier. The second is closure: elastic and flap suits a folder that travels, while an open concertina is faster for a folder that lives on a desk. See document wallets for single-set carrying.

Expanding folder with labelled dividers on a modern office desk for organising invoices, reports and project documents.
Expanding Folders for Documents

Shop expanding folders for portable filing, school papers, receipts, reports and organised document storage.

All Expanding Folders products