Query: how to add quotes when importing a txt file

Dear R users,
I have a txt file of the form

10092007 24.62 24.31 24.90
11092007 19.20 23.17 22.10
13092007 24.71 27.33 23.10
14092007 27.33 27.90 24.10
15092007 28.22 28.55 24.30
16092007 28.53 29.24 27.40
17092007 24.19 30.64 26.80
18092007 22.60 20.62 28.40
19092007  8.89  1.70 14.70
20092007 21.27  2.92 17.30
21092007 22.38 24.72  8.80
22092007 23.94 24.73 20.40
23092007 25.33 25.12 22.60
24092007 24.91 22.46 21.40
25092007 23.52 25.00 21.70
26092007  2.50  2.29  8.80

and I have to import it into R. The problem is that I have to add the quotes at the beginning and end of the file, like shown here below. I tried to use read.zoo (in fact I will have to use the zoo package afterwards), but I have not been able to do what I need.
Could you please help me in that? (not necessarily with read.zoo, any method will be fine!)

"10092007 24.62 24.31 24.90
11092007 19.20 23.17 22.10
13092007 24.71 27.33 23.10
14092007 27.33 27.90 24.10
15092007 28.22 28.55 24.30
16092007 28.53 29.24 27.40
17092007 24.19 30.64 26.80
18092007 22.60 20.62 28.40
19092007  8.89  1.70 14.70
20092007 21.27  2.92 17.30
21092007 22.38 24.72  8.80
22092007 23.94 24.73 20.40
23092007 25.33 25.12 22.60
24092007 24.91 22.46 21.40
25092007 23.52 25.00 21.70
26092007  2.50  2.29  8.80"

thank you
Stefano

        [[alternative HTML version deleted]]

______________________________________________
R-help@... mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.