Yes, i am sure it is a txt file, see first attacehed image, even though it is in spanish you can see that the extension is txt.

About the parenthesis, you are right, it is out of place. However it is not the source of the error. My code still does not recognize the second table.

Are both files returned by:

FileNames["*.txt", Directory[]]

And if so, does:

file=Part[FileNames["*.txt", Directory[]],1];
Import[file]

and so on for each position (presumably there will be two based on your screenshot) work?

Btw, using file names like "a.txt" or "b.txt" would be kinder for demonstration purposes here.