ZPNG is a graphics library for creating PNG file format files.It is available under a BSD-style license. Full documentation is on the ZPNG home page.
Facilities for reading and writing CSV format files
Common Lisp PDF Generation Library
Robust CSV parser and printer
Simple scheme to classify file types in a hierarchical fashion.
Gordon is a Common Lisp library that can be used to generate Adobe Flash files and thus useful in web applications. Found here. You might be interested in this rough "tutorial" on gordon.
Torta is an application using this library.file format
Magicffi is a CFFI interface to libmagic(3), the file type determination library using magic numbers. It can be used to guess file formats.It's written by Desmond O. Chang and can be found at http://common-lisp.net/project/magicffi/. Source code is at http://github.com/dochang/magicffi.
A library for MIDI and Midifiles.
Open Document Spreadsheet library
A library for persistent global variables.
Common Lisp implementation of the Python ConfigParser module
A library for reading CSV data from streams.
TIFF access primitives
Read and write cdb files, as specified in
A library for manipulating dates and times, based on a paper by Erik Naggum
A library for accessing octet-addressed blocks of data in big- and little-endian orders
A library for reading and writing binary records.