Overview

A workbook is composed of book-level properties and a collection of one or more sheets. The sheets are the central working surface for a spreadsheet application. The workbook part and corresponding properties comprise data used to set application- and workbook-level operational state. The workbook also serves to bind all the sheets and child objects into an organized single file. The workbook properties include information about what application last saved the file, where and how the windows of the workbook were positioned, and an enumeration of the worksheets in the workbook.