The problem? Apple and Claris (formerly FileMaker, Inc.) have buried the download links so deep you’d think they were hiding treasure.
Let me paint you a picture.
If you go to their main download page, you’ll see versions 19, 2023, and 2024. Version 13 is considered "End of Life" (EOL). That means no security patches, no support, and usually no public download links. filemaker pro 13 download