Step 1 - Upload MP4 file. Select MP4 file from your computer using the browse function. Step 2 - Choose to MKV. Choose .MKV destination format. We support most video formats. Step 3 - Download your converted MKV file. Download your converted MKV file immediately. Install free DivX desktop software. Open DivX Converter. Drag your video file onto DivX Converter. Pick a profile (in this case MP4) and click “Start”. That’s it! You just converted a file from MKV to MP4 using DivX.Once your file is done converting you’ll have a shiny, new MP4 file to share as you wish. Along with converting MKV video Step 1: Upload the MP4 file by tapping the Add Files option. For batch conversion, you can add more files by clicking the Add More Files button. Step 2: Select the MKV format from the drop-down list. Step 3: Hit the Convert button. In the case of batch conversion, you have to click the Convert All To. Compared to AVI files, MKV files tend to be in a better quality and smaller file size. Therefore, it may be desirable to convert AVI to MKV with Any Video Converter to save space and make a more streamlined digital video file for better enjoyment. Convert MKV to MP4. MKV file format is becoming more and more popular now. 5kK0YAd.