Exporting historical data from mt4

Does anyone have a working indicator/script/ea that can export all historical data at once.

here you go script

thenk you

Hi, could you please tell me how to use this? I need the historical data in a file so I can access it programmatically outside Metatrader.

Hello everybody! Anyone has a script to export historical data to CSV? I have one, but must use it on every chart in the terminal.
Is there a way to make a script to run on all open charts?

This is the script I use, but must atattch to evey chart I want to use.

void OnStart()
{
Comment("Loading...");
int maxBars= MathMin(TerminalInfoInteger(TERMINAL_MAXBARS),200000);
string comment="";
ENUM_TIMEFRAMES periods[] = {PERIOD_M1, PERIOD_M5, PERIOD_M15, PERIOD_M30, PERIOD_H1, PERIOD_H4, PERIOD_D1};
for(int p=0;p<ArraySize(periods);p++)
{
comment+=ExportBars(periods[p], maxBars)+"\n";
Comment(comment);
}
comment+="Ready";
Comment(comment);
}

string ExportBars(ENUM_TIMEFRAMES period, int maxBars)
{
MqlRates rates_array[];
ArraySetAsSeries(rates_array,true);
int bars=CopyRates(_Symbol,period,0,maxBars,rates_array);
string fileName=_Symbol+PeriodToStr(period)+".csv";
string comment="";
if(bars>1)
{
int filehandle=FileOpen(fileName,FILE_WRITE|FILE_CSV);
for(int i=bars-1; i>=0; i--)
{
FileWrite(filehandle,
TimeToString(rates_array[i].time,TIME_DATE),
TimeToString(rates_array[i].time,TIME_MINUTES),
rates_array[i].open,
rates_array[i].high,
rates_array[i].low,
rates_array[i].close,
rates_array[i].tick_volume);
}
FileFlush(filehandle);
FileClose(filehandle);
comment="File exported: "+fileName+", "+IntegerToString(bars)+" bars";
}
else
{
comment="Error with exporting: "+fileName;
}
return (comment);
}
string PeriodToStr(ENUM_TIMEFRAMES period)
{
string strper;
switch(period)
{
case PERIOD_M1 : strper="1"; break;
case PERIOD_M5 : strper="5"; break;
case PERIOD_M15 : strper="15"; break;
case PERIOD_M30 : strper="30"; break;
case PERIOD_H1 : strper="60"; break;
case PERIOD_H4 : strper="240"; break;
case PERIOD_D1 : strper="1440"; break;
case PERIOD_W1 : strper="10080"; break;
case PERIOD_MN1 : strper="43200"; break;
default : strper="";
}
return (strper);
}
//+------------------------------------------------------------------+

My coding ability is -10.

Thanks in advance.