How to grab web data into libre office calc ? Or Addons to grab specific web data into libre calc‏

Hi
 
Preamble ...
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*I've been on the m$ office treadmill for 15 + years 
*I've always been scared of Linux and thought it was all command line
*Recently stumbled on Ubuntu Linux and libre office ...so I am  completely new to
libre office
*Used it for a few days ... Truly it's a great piece of software and 
dispelled most of my doubts on Linux, using Linux, libre office etc etc 
 
Question / request reading 
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*However some specific doubts remain on libre office 
*I've been using M$ XL's add on for grabbing web data , called smf add in 
*When activated, once could easily grab specific pages, specific cells of
web pages directly into xl ( without opening a web browser)
*This is a great time saver 
*The only and only /  excellent  group for using smf add in  can be found at
http://finance.groups.yahoo.com/group/smf_addin/
*Some  basic write up on using smf add in can be found here
http://seekingalpha.com/instablog/326478-derek-a-barrett/1414481-automating-alpha-getting-started-with-stock-market-functions-smf-add-in-for-excel
 
Now, my question is , is there a similar add in for libre office, when
invoked , could help the user  get specific cells ( not the whole web page )
from a URL  into libre xl sheets ? Of course the user supplies the URL 
 
Or is there some app in Linux that can do the same ? 
 
How do people grab specific web data ( not entire pages ) but specific data
for web pages into libre calc ?
 
 
**IF such a web add in exists I am ready to join the testing community **


Request to Moderators ; if I am posting on the wrong area or group please
most this post accordingly



Thanks in advance
Regards