To make all cells in an Excel worksheet the same size, you can adjust the row height and column width. Here's how you can do it:
Select all cells in the worksheet. You can either click on the top-left corner of the worksheet (where the row and column headers intersect) or use the Ctrl + A keyboard shortcut to select all cells.
Right-click on any of the selected row headers (the numbers on the left) and choose "Row Height" from the context menu. Alternatively, you can go to the "Home" tab in the Excel ribbon, click on the "Format" dropdown in the "Cells" group, and select "Row Height."
In the "Row Height" dialog box, enter the desired row height value in the "Row height" field. For example, if you want all rows to have a height of 20, enter 20. Click on "OK" to apply the row height to all selected cells.
Right-click on any of the selected column headers (the letters at the top) and choose "Column Width" from the context menu. Alternatively, you can go to the "Home" tab, click on the "Format" dropdown in the "Cells" group, and select "Column Width."
In the "Column Width" dialog box, enter the desired column width value in the "Column width" field. For example, if you want all columns to have a width of 10, enter 10. Click on "OK" to apply the column width to all selected cells.
After following these steps, all cells in the Excel worksheet will have the same size based on the row height and column width you specified.