Excel job label noun explanation, worksheet label refers to the button that marks the worksheet name below Excel and can switch active sheet. MicrosoftExcel is a spreadsheet software written by Microsoft for computers using Windows and AppleMacintosh operating systems. Intuitive interface, excellent calculation function and chart tools, coupled with successful marketing, make Excel the most popular personal computer data processing software. 1993, as a component of MicrosoftOffice, after the release of version 5.0, Excel began to become the overlord of spreadsheet software on the applicable operating platform.