Drag and drop means drag an drop. Drag the file over on top of your filemaker pro application icon. When the icon highlights, let go.
If you use import records instead. You can select "new table" as the target table to import your spreadsheet.
In either case, make sure the first row of your spreadsheet contains the field names you want for each column.
That was so simple. I wish that explanation was more readily available. i think it is a great sales benefit.
Thanks for you help.