what is workbook in microsoft excel?

Answer 1

The first answer is correct. What would be a document in word is called a workbook in excel.

The default new workbook has three blank sheets, called sheet1, sheet2, sheet3. You choose between them via clicking on the appropriate tab in the bottom left.

Answer 2

When you open word you get a document, like a sheet of paper online. When you open excel you get a book of pages that allows you to do calculations etc. that book is called a workbook. It contains more than one page.

Answer 3

one spreadsheet in ms-excel called workbook, ususally when you open the excel file, the default would be three workbooks (shown by the tab on the bottom left).