The green corner in the upper left corner of Jinshan document cell indicates that the format of this cell is "text". If there are numbers to be calculated in the cell, when there is this green corner, the calculation result will be wrong. The following demonstrates the operation process of the cell switching format:

Demonstration equipment: Lenovo AIO520-22 integrated machine, WIN7 7,2345 browser 10. 14.

First of all, as shown below, if a cell has a green corner in the upper left corner, it means that the cell is of text type.

2. When you need to convert the type, click this cell to enter the start tab.

3. Click Cell Format, and then click General or Numeric in the pop-up menu.

4. As shown in the figure below, when using conventional or numerical format, the corner mark of the cell will disappear and can be calculated normally.