explation needed pls

[Adegbola Shodunke]

Ca in  somebody explain to me what sandbox means and what role does is play while using fileopen() function.And also I copy a file in a directory "file" in mql terminal but this file cannot b open by

fileOpen(),not sure I copy the file in the right directory,the file is a txt file.Thank you

[Alain Verleyen]

1981:

Ca in  somebody explain to me what sandbox means and what role does is play while using fileopen() function.And also I copy a file in a directory "file" in mql terminal but this file cannot b open by

fileOpen(),not sure I copy the file in the right directory,the file is a txt file.Thank you

https://en.wikipedia.org/wiki/Sandbox_%28computer_security%29

Use menu File then Open Data Folder, to get the right directory.