REUSE_ALV_GRID_DISPLAY export to exel

Hi!

I'm displaying numbers into my ALV, that works perfect but when I export the ALV to Excel with the standard button (CTRL + SHIF + F7) I get the Excel sheet but the numbers are not being displayed fine.

the scenario.

I have a column of 20 char

012345678890123456789

and the number is much more bigger than 20

Is being display as

20

instead of

20

so I have to make the collumns bigger to se the data and does not look good.

Any idea?

My field size is 20