Dear Sir, dear Madam,
my name is Wolfgang Backhaus, I am an experienced software developer and system engineer from Germany, working in the telecommunications industry (mobile networks) since more than 15 years. My preferred programming language is Perl, but I have a competitive background in other scripting and non-scripting languages (shell, C, Java) as well.
Since I am an expert in Perl regular expressions my approach to solving this task would deployment of those to locate each single mail in the mbox-file, adjust the proper regexp according to the format indicated in the subject line and extract the data to a csv-file which can be imported to Excel afterwards.
5+3+1 = 9 BTW
Best regards
Wolfgang Backhaus