noun
clear file; plastic sleeve; sheet protector
A transparent plastic pocket used to store and protect documents, often hole-punched for binders. The term is a wasei-eigo (Japanese-made English) and may not be understood as 'clear file' outside Japan.
書類をクリアファイルに入れて提出してください。
Please put the documents in a clear file and submit them.
100均でクリアファイルを買った。
I bought a clear file at the 100-yen shop.