MQL4 FileOpen function

 

Hi guys,

I need to add data to an existing file, a cvs file.

On MQL4 reference I found that "If there is a need to add data to an

existing file, it must be opened using combination of FILE_READ |

FILE_WRITE." but does not work.

Every time I launch Metatrader the file reset to zero-length.

Anyone has properly did it?

Thank you in advance,

Obi Wan.

 

How bout just opening it in Excel (or Openoffice's replica of it) and just copy pasting the cells?

However for the zero length I have never heard of it before.. do you mean all your data for that currency pair that you modified dissapeared?