From Huslik Verlag:
FMChecker delivers unique information on any FileMaker Pro file (version 3-6): Print Settings, Sort-, Import-, Export Order, and Find Criteria of scripts; date, time, and version a FileMaker Pro file created; view contents of global text and number fields; view hidden settings of global fields, like validation applied to a field and later changed to a global FMChecker lists fields, Layouts, Scripts, File references, and valid paths. Passwords sorted by different criteria and filtered. The free FMChecker Preview never expires and works with an unlimited number of files. The licensed version adds cross-reference information on fields, formulas, relations, value lists.