Extracting out Data to save in a xls or doc file

I work for a company that receives auto receipts for work that has been
processed and properly ingested. My question for you, is there a way for a
specific line of data to be extracted out and dropped into a XLS file or a
word doc? There is always going to be a line of data called "Summary report:"
the information that I need is contained directly after this line, there is
also always going to be in the subject line the word "receipt". I can of
course set up a folder for these but to extract the data out is where I am
running into problem. Please help if you can. Thanks.