We see many similar circles, which are actually hidden objects.
3. Click one of them with the left mouse button, and then press the delete key to save the file.
Finally, our file size returned to normal. ?
Precautions:
Although Excel provides a lot of user interface functions, it still retains the functions of the first spreadsheet software VisiCalc: rows and columns form cells, and data, formulas related to data or absolute references to other cells are stored in cells.