1. Create a new excel with blank excel, as shown below;
2. Enter a word such as "People's Republic of China (PRC)";
3. If you want to enter a new line in the first line, the normal idea is to press the "Enter" key, but after pressing the "Enter" key, the result is as shown in the figure below, and you jump directly to the second line;
4. Press "ALT"+"ENTER" at this time, and you will see that the first line is widened;
5. Enter the word "Jiangsu Province" at this time, and you will find that "Jiangsu Province" and "China people and the country" are in the same box, but the lines have changed.