Select the cells, rows, or columns you want to resize
To adjust column width, drag the right border of the column header
To adjust row height, drag the bottom border of the row header
Double-click the border of a column or row header to AutoFit the size to the content
Right-click the selected column or row header and choose Column Width or Row Height
Enter the desired measurement and click OK
Use the Home tab, then select Format in the Cells group
Choose Column Width, Row Height, AutoFit Column Width, or AutoFit Row Height
To resize multiple columns or rows at once, select them before adjusting
To make all cells the same size, adjust all selected rows and columns to the same width and height