An active file is a document or data that is currently being used or accessed. There are several synonyms for active files which include "live files", "current files", "working files", "open files" and "accessible files". These terms indicate that the file is currently in use or available for use by a user. Active files are commonly used in modern computing and are actively managed by various software applications. They include documents, spreadsheets, and other types of files that are frequently updated or changed. It is important to keep active files organized to ensure efficient workflow and productivity.