I've made a save editor with the use of PFM Library.
My part of the code is released under the WTFPL.
REQUIRES .Net Framework 4.5.1
Update: 17/09 quickfix for improperly saving skill information Update: 25/09 Added ancillary editing and army editing Update: 27/09 fix army stats saving Update: 09/02 completely rewritten. added army unit editing Update: 12/07 fixed bugs and updated schema and packfilemanager dlls Update: 03/08 Allow custom pack files loading. You should be able to load your own language files and other mod files now. Update: 10/08 Fixed army unit loading changed description of unit editing box to "Units" improved control scaling Known bug: controls not shrinking once expanded Update: 16/08 Fixed some UI Bugs...