Has anyone come across list of which file formats generally compress well (in general algorithms)?
Generally, text files
.txt compress well, and media-files (
.avi, etc) do not compress well.
I'm looking for a list (or database) of file formats so I can answer the question, "
Will a general, lossless algorithm compress a <.xxx> file?".
EDIT: Of course by nature, random data, media files, and compressed data do not compress well. That is not my question.
Question: Where can I look up descriptions of file-formats, specifically to discover if the format already contains compression?
AutoCAD Drawings, Various Microsoft Office formats, Oracle Database .DBF files, Adobe PDF files, Outlook PST files, etc