To do this assignment, simply create a one-line text file with the name of your home country and nothing else. Make sure you are creating a real text file, not, for example, an .rtf file.
Does the above sentence mean don't use rtf format file?
I can see where there could be some confusion - you might say to yourself, "Isn't rtf a real text file? After all, what could rtf possibly stand for if it doesn't mean 'real text file'?"
Well, an rtf file is a Rich Text Format file in which not only the text is included, but also instructions for formatting such as font, size, color,etc. Other examples include PDF, PostScript and HTML among others.
A pure text file would contain only ASCII characters.
Yes, it means don't use an rtf file or anything similar, use a real text file.