CSV2QFX is an useful utility to convert CSV and Excel files to the QFX format. Simply point to the CSV file and CSV2QFX will do the rest.
QFX format is Web Connect file to import into Quicken, Quicken 2015 for Mac, Quicken Essentials for Mac and Quicken online. Other accounting and personal software packages support QFX import such Simple Home Budget, YNAB, Wave Accounting, AccountEdge, and many others.
The application allows to review and select transactions before converting to QFX (Web Connect) file.
In Quicken, import QFX as File, then Import, then Web Connect file under the main menu.