Conversion overview
Before you convert any FileMaker Pro database, you should plan the conversion carefully. The general steps for file conversion are:
Convert the database file.
FileMaker Pro 13 can only convert files created with versions 7.x, 8.x, 9.x, 10.x, and 11.x. (To convert files earlier than FileMaker Pro 7, see Converting FileMaker Pro databases earlier than version 7.x.)
When you convert files, FileMaker Pro 13 preserves the contents of your original files and creates new, converted files in FileMaker Pro 12 format. The content of the original files are not modified, and you can open them in the previous version of FileMaker Pro that created them. The converted files can be opened only in FileMaker Pro 12 and FileMaker Pro 13.
You can convert a single file or convert multiple files at once:
Note  Any FileMaker Pro application preferences remaining from prior installs of earlier versions of FileMaker Pro are ignored. The installer does no conversion work.