This document discusses different filing and indexing systems used to store documents systematically. It describes misfile filing, box filing, horizontal filing, vertical filing, and modern filing systems such as alphabetic, numeric, subject, and geographical filing. The objectives, advantages and disadvantages of each system are provided. Indexing is also discussed as an important tool that helps quickly locate files and is complementary to filing. Maintaining well-organized filing and indexing systems is important for prompt retrieval of documents, saving time and efforts, developing efficiency, and maintaining secrecy.