Complex sentence: A fact sheet, factsheet or (in some industries) one-sheet is a presentation of data in a format which emphasizes key points concisely, usually using tables, bullet points and/or headings, on a single printed page.
Split into simpler sentences: A fact sheet, factsheet or (in some industries) one-sheet is a presentation of data in a format which emphasizes key points concisely. The layout is simple and often standardized, e.g. using a table, bullet points and/or headings, and is usually on a single printed page.