Both .fp5 and .fmp12 files seems to be databases from various versions of FileMaker Pro software. It is not clear whenever these two files may actually be converted between each other, or from what version they originate, but it is likely they can be only handled by FileMaker and no other 3rd party software.
Convert FileMaker Pro database file to FileMaker Pro database.
We have found 2 software records in our database eligible for .fp5 to .fmp12 file format conversion.
Microsoft Windows software - convert fp5 to fmp12 on Windows
FileMaker Pro for Windows is easy-to-use database software used to create and manage information databases.
Convert from fp5 file
to fmp12 file
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned fp5 to fmp12. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
Apple macOS / Mac OS X software - convert fp5 to fmp12 on OS X
File Maker Pro for Mac is easy-to-use database tool used in business, government, and education to manage their information in databases.