How can I extract sentenses from text documents

[Wade Smart]

12222005 1250 GMT-5

Ok, this may be totally impossible but, I have about 1800 documents that 
have sentences inside [QUOTE] and sometimes [QUOTE] [QUOTE] or [QUOTE] 
[/QUOTE]. I don't know how many lines each document has - maybe 8 to 
20k. Is there a way to copy all the sentences between the [QUOTE] 
[QUOTE] or [QUOTE] [/QUOTE] to a new file?  

This is way beyond my knowledge but if someone knows how this is done, 
if they would point me in the right direction - I would greatly 
appreciate it..

Wade