If the tab and the '\' are always at the end of a line, you can use the lvalue of substr:

substr($line,-3,2)=''; #assuming your line ends with a newline
$line =~ tr/"//d;  #deletes all quotes in your text
[download]

If you want to take care of nested quotes, take a look at Parse::RecDescent or the likes.

Cheers,

Jeroen