4 million records is outside the reasonable reach of a consumer database application. May be possible to break down the CVS into 25 pieces for import, but access and processing speed may not be acceptable.
SQL of some version would be a logical suggestion. I would start here https://www.google.com/search?q=database+for+4+million+records
You could use the SQL database for storage and use Filemaker as a frontend access.
Great I thank you for the input. I have a potential client that wants to go this way using this product. I am going to try MySQL and see if I could load the data. I appreciate the help.