Converting FileMaker Pro databases earlier than version 7.x
FileMaker Pro 13 cannot convert databases created with FileMaker Pro 1.x or 2.x. To use these files with FileMaker Pro 13, first convert them using FileMaker Pro 6.x. Then use the most recent trial version of FileMaker Pro 11 to convert the files to version 11. You can download this file at //www.filemaker.com/downloads.
Note  Pre-7.x versions of FileMaker Pro for Windows can convert only 2.x files.