Information processing apparatus and recording medium

摘要

An information processing apparatus is disclosed that updates a desired block data item contained in an archive file in an archive file format. According to an update instruction from an update instructing part, a predetermined data item contained in the archive file is protected before the archive file is updated. The content of the protected predetermined data item is updated based on updated content of the block data item contained in the archive file. The updated predetermined data item is written into the archive file into which the updated block data item is written.