`filelist-utils` is a small JavaScript library that creates a uniform **FileCollection** abstraction from many different sources – a browser `FileList`, a local directory path, a zip archive, or a remote JSON service – and provides a common iterator with convenient methods (`arrayBuffer`, `stream`, `text`) for each file entry. It is aimed at developers building web or Node.js applications that need to handle files interchangeably (e.g., drag‑and‑drop folders, server‑side uploads, or zip extraction) without dealing with the underlying platform‑specific APIs. The package is now deprecated in favor of the newer `file-collection` library.