Dear Steven,
Thank you for your quick response.What I really ment from stuck is that progress bar keeps moving (the green marker going from left to right for hours). I have selected the ascii file type and that is the only file type in which my desired file becomes visible for selection in the browse window.
Regarding your last question I have not personally opened this kind of file befor but my associates are working on the same kind of files (different subjects) using brainstorm and they can open them just fine.
Best regards,
Ali