An application program that allows a user to set page number and spell check of document is known as:

🧠 Explanation:

A word processor allows setting page numbers and spell-checking documents. For tech students, this highlights document tools, making it a key topic for studying digital literacy, word processing, and productivity. Processors enhance documents. Understanding this ensures effective software use. It’s essential for mastering document tools. Studying word processors offers insights into how software manages text, crucial for IT, technical writing, and business.