button. Step 2. Click the "Open media" button to import your AVI files. And then click the "Customize" button to choose MKV format under the "Encapsulation" tab and click "Apply". Step 3. Click the "Save as File" button to convert and save your MKV files. Batch convert is supported via the GUI in VLC 3.0.0 Otherwise, use command-line batch transcoding below. Command Lines Windows. Another method is to press the keyboard shortcut Ctrl+V (⌘+V on Mac) to paste an MKV file you have copied to clipboard. Converting a folder with MKV files to JPG is also supported: simply paste or drag and drop it. Click or tap on JPG from the list of target formats. Alternatively, you can use the search field to quickly find the format you Windows/Mac. Free Trial. Free Download. 1. TalkHelper Video Converter (Recommended) When it comes to working the necessary magic to convert MKV to MP4, this is, without a doubt, one of the candidates that you should not fail to consider. TalkHelper has been crafted carefully and with all your video conversion needs in consideration in order to Step 1: Open VLC and select Convert/Save from the Media menu. Step 2: On the Open Media dialog, click Add button to add the AVI files you intend to convert. Hit the Convert/Save button. Step 3: Click the Create a new profile icon to open the Profile edition dialog. Then select MKV, give a profile name and click Create. TJCnkUD.