資料:data, material
⇒the original of material. Especially, it is a basis of materials which is study or judgement and so on.
書類:papers
⇒The genetic name for a paper and a document is papers.
Especially,it means a document of clerical work or a record and so on .
I've done all I can.
分かりづらいかもしれないです!ごめんなさい!
日本語の細かい違いって難しいと思いますが頑張ってくださいね!