This issue has been dealt with here. The approach described therein assumes that you have already separated your schema dump by filename.
However, if I've understood you correctly, you have a schema dump from which you wish to extract a single file? I have written a small tool which extracts individual table data separately from a schema dump file.
It's called MySQLDumpSplitter. If it doesn't suit your needs, there are two others with the same name also on Github. A Google of "mysqldump file split" or similar will lead you to other tools.
Once you have your Table_name.sql file, just follow the steps outlined in the first link.
DISCLAIMER: I wrote the linked tool. Its limitations are described on the page - you may find others which work better for you.
create tablestatements, you can use some text file tools to split the file on those, locate the right one and use only that (or use any text editor able to handle big files to do the same) - or just grep tablename (with sufficient -B and -A) and you should get most of the relevant data.