Bento, the discontinued database app from FileMaker? You can probably export your data as a .csv file and then import it into Airtable. If not, you can migrate your Bento database into FileMaker, and then export it as a .csv file from there.
I am quite possibly the world’s only expert in both FileMaker and Airtable, so if you have a budget for your project and you need help with this, feel free to contact me through my website at scottworld.com.