How to: AutoFit column width.
Solution:
Select 'Column' from the 'Format' menu and select 'AutoFit Selection' from the submenu.
1) Select the desired columns.
2) Select the 'Format' menu and select 'Column'. (A submenu appears.)
3) Select 'AutoFit Selection' to make the column width fit the contents of the cells.
the AutoFit Selection command