History Center : Import csv file

Hi All,

I'm very new to MT4.
I have a third party data file that I want to get into MT4. I changed the format of that file to be as the picture attached (which should be OK??)
I've tried the History Center Import function but for some reason it doesn't seem to import import my csv file i.e. the number of records does not change??
Did I miss anything obvious?

Any help appreciated

Yeah.
First of all divide OHLC values by 10000.

Imported bars replace existing bars hence the number of bars can stay the same.

Thanks for your reply


I didn't know that thanks for the tip. However when checking the data, I still have different data in my original CSV file (the one I want) and in the history centre (the one I want to get rid off). Seems like nothing happened. Do I need to be off-line to do this? If yes is there anyway to do this other than deleting existing account(s) on my MT4 session?

What I need is just my csv file into the history centre in order to conduct backtest with my third party data (the csv file). A bit more investigation taught me that this is doable via a script (Period_Converter.mq4) it ships with a standard version of MT4. All this sounds a lot of hassle for a very simple thing or maybe I'm being dumb....

Once again any help appreciated

Cheers

I solved my problem after many hours playing around with data formatting and MT4.
I didn't find a single place where all this is (properly) explained (or maybe i didn't do my homework properly!).
I post my findings here, it might help others.

1 - Go to History Center choose the symbol you want to update and click Import
2 - In the new window select the file you want to import. The file has to be in [MetaTrader]/experts/files. Beware of the time formatting: Excel has a tendency to remove leading 0....The file has to be as shown in the attachment. Otherwise it imports something but not quite what you want (at least for me).
3 - Click OK and check that the data number has changed.
4 - Shut down MT4 and reopen it.
5 - Go to Open Offline and check that the serie you imported has the right data number. This number actually changes if MT4 is on line.

It's also possible to do that via a script but I didn't have any success with this method.

How did you solve the excel problem. I am also facing the same problem. And in what format must the time be shown in. Is it seconds?

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Deedeed,

You need to use the TEXT function in Excel.
i.e. TEXT(B2,"000000") and then copy and paste that value in the Time column in the example above. This will keep the initial 0 in the Time column.
I don't think you need any particular format for the time. I just used text and works fine.