Worksheet, in the word’s original impying, is a sheet of stationery on which one performs activity. They come in many type forms, most commonly connected with children’s school work task, tax forms, also accounting or another business environments. Software is increasingly taking over the paper-based worksheet.
It could be a published page that a kid finishes with a writing tool. No materials are required. It’s “a single paper on which work schedules, working time, specific hints, etc. are recorded. A piece of paper on which issues, ideas, or the like, are write down in tentative form.” In school, a worksheet may have questions for students or where to write answers.
In accounting, a worksheet is, or was, a piece of instructed paper with rows and columns on which an accountant could write information or do calculations. These are often called columnar pads, and typically green-tinted.
In IT, spreadsheet software presents, on a PC monitor, a user interface that resembles one or more paper accounting worksheets. Microsoft Excel, a favorite spreadsheet program, bases on a single spreadsheet (more technically, a 2-dimensional matrix or array) as a worksheet, also it refers to a group of worksheets as a workbook.