Free Dxf2Dwg

From the Autodesk App Store:

Dxf2Dwg is a database based Batch Process tool to convert multiple dxf files into drawing and it is an easy to use and powerful tool. It is one of the Autodesk® AutoCAD® Productivity tool developed by CADManagerTools.com

Key Features:

1. Easy to use Interface and Automated batch process.
2. Dxf version check could be done instantly by loading dxf files in the Batch process.
3. Import/Export of Dxf file list.
4. Supports Windows 32/64 bit Autodesk® AutoCAD® 2013 to Autodesk® AutoCAD® 2019 and Verticals.

Read Help Document

About This Version

Version 3.1, 1/3/2019 – Added support to AutoCAD version 2019

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Dxf2Dwg is brought to you by CADManagerTools. It's free.

This add-in is compatible with AutoCAD 2019, 2018, 2017, and 2016.

There's more information available on the Autodesk App Store.