Excel supports different formats for positive and negative numbers. You can combine text and formatted values to make the display more presentative. Another numeric format is a timestamp, and you can find a difference between two timestamps and display it in days, hours, and minutes. However, Excel does not handle well negative timestamp differences.

Excel opens many ways to get more workspace, such as collapsing the Ribbon, hiding the Formula bar, hiding column and row headers, and even hiding spreadsheet tabs. If you have only one worksheet in your workbooks, or you want to disable access to other spreadsheets of the workbook without hiding them one by one, you can hide all spreadsheet tabs in your local environment:

The Formula bar displays data and formulas for the current cell in Microsoft Excel. You can expand the formula editor if the data or formula does not fit and hide the formula bar if you need more screen space.

Column letters and Row numbers are principal features of Excel spreadsheets. Using Column letter and Row number, you can address any cell - the main element in Excel.

When you work with many graphical objects such as pictures, charts, text boxes, shapes, etc., it is sometimes challenging to select one of the objects - it can lay behind other objects, or it can be too small, etc.
Excel proposes an excellent feature named Selection pane to help navigate between different objects and groups.

Like a regular text, the comment boxes can be formatted. Excel provides many formatting options and allows you to customize most aspects of its appearance, including color, border, and margins.

The kind of comments that users of earlier versions of Excel used to work in Excel for Microsoft 365 are called notes. You cannot change the shape of comments because all comments are displayed in the separate pane with threads or on the Comments pane (see How to hide/show note and comment indicators for more details).

When you create a presentation from a draft Excel spreadsheet, you might need to delete all notes and comments. You can delete every note and comment one by one, but this will take some time. This tip shows the quick way how to delete all notes and comments in your spreadsheet.

If your spreadsheet contains notes or comments, you can print them as they appear on the sheet or at the end of the sheet.

Excel for Microsoft 365 has changed the way to work with comments. Now you have two different features for commenting: comments and notes.