Converting FileMaker Pro 1.x and 2.x databases
FileMaker Pro 10 cannot convert databases created with FileMaker Pro 1.x or 2.x. To use these files with FileMaker Pro 10, you must convert them using FileMaker Pro 3.x, 4.x, 5.x, or 6.x, and then convert them again using FileMaker Pro 10.
Note  Pre-7.0 versions of FileMaker Pro for Windows can convert only 2.x files. If you need to convert a 1.x file, convert the file on a Mac OS computer using FileMaker Pro 3.x, 4.x, 5.x, or 6.x.