@echo off
for %%? in (0000000?.png) do ren %%? " *.*"

for %%? in (000000??.png) do ren %%? " *.*"
for %%? in (00000???.png) do ren %%? " *.*"
for %%? in (0000????.png) do ren %%? " *.*"
for %%? in (000?????.png) do ren %%? " *.*"
for %%? in (00??????.png) do ren %%? " *.*"
for %%? in (0???????.png) do ren %%? " *.*"

lfnfor on


for %%? in (" *.png") do ren "%%?" %%?
:: End of batch