Is there a more efficient way of ripping alot of sprites and pasting them on a sheet

[Sploo]

Alright, so heres what I need help with.

Is there any feature or a program that lets me fill a sheet with sprites (about like 460 sprites) quickly? Currently I am filling the sheet manually by pasting them one by one which took me like a hour to finish.



I am trying to make one like this one I did previously

All help is appreciated