These documents are very important, don't lose them.
Tips
usage
资料 is a very common word in work and study contexts. 查资料 (look up information), 准备资料 (prepare materials), 个人资料 (personal profile).
mistakes
Do not confuse 资料 (materials, data) with 信息 (information, message). 资料 implies organized reference materials; 信息 is more general information or a specific message.
