Change the zoom of the SALES worksheet to 90%.

Change the settings of the application as follows:

User Name: kostas

Number of Recent Documents: 9

and make the formulas visible.

Freeze panes in the active spreadsheet for the first two rows.

Freeze panes in the active spreadsheet, so that the moving part of the worksheet extends from the cell B3 to the right and downwards.

Change the zoom of the 2ndhour2 worksheet to 25% and the zoom of the SALES worksheet to 50%.

Change the setting of the application (not the settings of the workbook) so that the default file location to save workbooks in is C:\

Hide column C.

Split the active worksheet into two horizontal panes in a line of your choice.

Set the name Haris as author of the workbook.

Check and correct the spelling and the grammar errors of the active document.

Display the ribbon of the application.

Minimize the ribbon of the application.