Text manipulation

Hi, I'm new to this so forgive any incorrect protocol.
I am trying to extract data from text (strings) such as "W: 100 cm, D: 58 cm, H: 72 cm" the text (between inverted commas) is in one cell in Excel 2003and, in order to use the data, I would like to extract the 100, 50, and 72 into three cells.
Can anyone help?
Regards,
Pete

Make sure you have vacant columns to the right of your text

Select cell/cells, column

If all sizes are 2 digit
Data Menu > Text to Columns > Fixed Width > Click Where You want to split text (If In wrong place click on line to remove)

If they are different then try

Data Menu > Text to Columns > Delimited > Space

This will split it over 6 columns

here's a formula approach. Assuming all your data is in the format shown then use this formula to extract the Width

=MID(A1,FIND("W",A1)+3,FIND("cm",A1,FIND("W",A1)+1)-FIND("W",A1)-4)+0

for D and H replace the 3 Ws in the formula with the relevant letter

Thanks for your help, with slight changes it has proved just the answer.
I wanted to thank all those who replied but it's taken me half an hour just to find you...Can you direct me to a page that easily tells me how to post a question, and how to see the replies to the question?
Sorry to be such a dummy, it's my first time on a forum (didn,t know they existed).
Again, Thanks,
Pete