FileMaker Pro

Filemaker is a relational database software application originally developed for Macintosh but later released for Windows in 1992. Owned and developed by Claris, an Apple Computer subsidiary.

File Information
Early versions of the file format did not have an extension, as most Macintosh Classic files do not. Early Filemaker files have a string at offset 525 which can help in identification.
 * All files since FileMaker Pro 12 have extension .fmp12.
 * FileMaker Pro 11, 10, 9, 8 and 7 can be opened directly in current software.
 * FileMaker Pro 6, 5, 4, or 3 files will need to be converted to FileMaker Pro 11 before they can be converted to the .fmp12 file format.
 * FileMaker Pro 2 or FileMaker Pro 1, must be convert to version 6 before they can be converted to 11.

Software & Sample Files

 * FileMaker Pro 6 (Mac/PC) trial, FileMaker Pro 11 (Mac/PC) trial
 * FileMaker Pro 3 Sample
 * FileMaker Pro 5 Sample
 * FileMaker Pro 7 Sample
 * FileMaker Pro 12 Sample
 * https://telparia.com/fileFormatSamples/document/fileMakerPro3/