Thx Johnwasser
I understand the principal.
but two questions
i got these error
cannot convert 'const char*' to 'uint32_t*'
and guess
pgm_read_dword(&(Xitems[frame][i]));
[frame] comes from
for (int i = 0; i < NUM_LEDS; i++) {
for (byte frame= 0; idx < sizeof(Xitems) / sizeof(Xitems[0]); frame++)
{
leds[i] = pgm_read_dword(&(Xitems[frame][i]));
}
}
i am very new to using arrays, so sorry for that 
these is a project for my daughter xmas
i put the 32*8 matrix into a pull and so she will have a interactive pull for wxmass.
So thx to all for helping me.