[MadeMan]

Try with small letters.

pawn Код:

if (strcmp(cmdtext, "/savepostofile", true)==0)
{
    new string[128];
    new Float:x, Float:z, Float:y, Float:Rotation;
    GetPlayerPos(playerid, x, y, z);
    GetPlayerFacingAngle(playerid, Rotation);
    new File:pos=fopen("Server/Save/onfoot", io_append);
    format(string, sizeof(string), "AddPlayerClass(0, %f, %f, %f, %f, 0,0,0,0,0,0);", x, y, z,Rotation);
    fwrite(pos, string);
    fclose(pos);
    return 1;
}