Please try to export first from MT4 then look the csv data format ...then you must have the same format to import into MT4...

options for data import :


Separator — data separator in the file to be imported. Comma, semicolon, space or tabulation character can be used as separators;

Skip columns — skip columns when importing. This can be helpful when the imported file contains more data types than necessary;

Skip lines — skip rows (lines) when importing;

Time shift — shift data by several hours in time;

Selected only — import only selected data. Data are selected by lines using "Ctrl" and "Shift";

Volumes — enable/disable importing of volumes

hope this help

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