For some charts or diagrams, you need to create a regular polygon – equiangular (all angles are equal) or equilateral (all sides have the same length). E.g., equilateral triangle, regular square, etc.

When you create a shape in your spreadsheet, it is created with the default style and any text that you type has the default font.

When you create a data table with daily records, you can need to highlight weekends or other specific days. You don't need to open a Calendar and do it manually; Excel proposes conditional formatting that can help you do it without any calculation.

When calculating the difference between two dates, you may want to exclude weekends and holidays. Excel proposes a standard formula for calculating the number of workdays for standard, five-day workweek. Also, Excel proposes a formula for calculating the number of workdays for different five-day workweek or six-day workweek.

From time to time, you need to count days of week between two dates or in some date range (see How to count days of week in the range of dates). Excel proposes different formulas to work with data. It is easy to create the formula you need for this task:

From time to time, you need to count days of week in some date range or between two dates (see How to count days of week between two dates). Excel proposes different formulas to work with data. It is easy to create the formula you need for this task:

When calculating the difference between two dates, you may want to exclude weekends and holidays. You can see how to calculate the number of Working Days between two dates for the usual, standard working week where weekends are Saturdays and Sundays.

If you use formulas in Excel, you often can see messages such as #VALUE! or #DIV/0!. Most of the time, this means you need to check the source of the error and fix it, but sometimes a formula error simply means that the data used by the formula is not yet available.

When you work with some Excel elements such as tables, charts, you spend a lot of time positioning them and formatting them. Here will find the feature that Excel proposes to help you create a perfect presentation of your data.

Excel has a lot of different, useful features to help you to present data. There are a lot of different charts you can create (see charts). One of the features for presenting your data in an interactive chart with a drop-down list.