Writes to a binary file all elements of an array passed as a parameter. The function allows you to quickly write arrays of numeric types or simple structures as one string.
[in] The name of the file, to the data array will be written.
[in] An array of numeric types or simple structures.
[in] A file flag indicating the operation mode. If the parameter is not specified, the file will be written to the subfolder MQL5\Files (or to <testing_agent_directory>\MQL5\Files in case of testing).
In case of failure returns false.