MS-Office Format Readershttp://www.wagner.pp.ru/~vitus/software/catdoc/
catdoc is program which reads one or more Microsoft word files and outputs text,
contained insinde them to standard output. Therefore it does same work for .doc
files, as unix cat command for plain ASCII files.
It is now accompanied by xls2csv - program which converts Excel spreadsheet into
comma-separated value file, and catppt - utility to extract textual information
from Powerpoint files.