: You can use wget -i list.txt to automatically download every URL contained within your text file.

: A browser extension that can process a list of links and download them simultaneously.

Access and download of a large number of papers - Zotero Forums

While "1000user.txt" is not a widely recognized standalone academic dataset, it is often a component of specialized research distributions or local benchmark files used in machine learning and data science.

: Use the "Find Full Text" feature or the Zotero Connector to bulk-save papers from your browser.

: An open database that indexes over 50 million free, legally open-access scholarly articles.

If you are looking for research papers that utilize large text datasets or specific lists of 1,000 users for analysis, here are several high-quality sources and relevant studies: Research Using 1,000-User Datasets