Is it possible to work with txt, csv or other files in the testing strategy? If so, how?

 
Is it possible to work with txt, csv or other files in the testing strategy? If so, how?
 
Josama Doland:
Is it possible to work with txt, csv or other files in the testing strategy? If so, how?
See:
MQL5 Book: Working with files / Common APIs
MQL5 Book: Working with files / Common APIs
  • www.mql5.com
It is difficult to find a program that does not use data input-output. We already know that MQL programs can receive settings via input variables...