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Converting hst-files into csv files - script for MetaTrader 4

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2875
Rating:
votes: 8
Published:
2016.03.25 14:10
hst2csv.mq4 (5.66 KB)view

The hst2csv script is used for converting *.hst files to *.csv files, that can be imported into the MetaTrader 4 client terminal with no errors.

Script Operation Principle

  • The input_file_name parameter must be specified with the extension. Extensions other than *.hst are not processed;
  • The input_file_from_history parameter set to 'true' allows to open files from the current history folder (terminal_folder\history\server_name). If it is set to 'false', the file is opened from \\experts\files.

What is the purpose of this script: by the client's request, I once put together a history from the pieces given by the customer, and found out that not all files are read by the terminal at all when importing the data from a hst file. But the data inside is valuable. And this script converted all those non-importable files to csv, and comparing the file sizes - correctly.


Those who have a comma as a decimal point can have the quotes turn into dates when opening a csv in Excel... inevitably. I can not think of any other way than writing a separate function for converting the number to a string with "," as decimal separator. My system has ".", so I left it as is.

Translated from Russian by MetaQuotes Software Corp.
Original code: https://www.mql5.com/ru/code/7092

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