I am trying to annotate some variants using the exac_03 database. I retrieved it using download.database(), but it retrieved the following database: hg19_exac03.sqlite.sql. It's now in my "annovar/humandb" directory.

When I try x <- annotation(dat = dat, anno.name = "exac03", database.dir = "annovar/humandb", db.type = "sqlite")
I get the following error:

Error in dbname.initial(anno.name, dbname.fixed, setdb.fun, buildver,  : 
  annovar/humandb/hg19_exac03.sqlite sqlite format database dose not exist.

Is there a step I am missing between retrieving the db and running annotation? Thanks!