The steps are as follows:

1. First. We found the Taotao music format converter in the software manager of 360 Security Guard and click to download.

2. After the interface as shown in the figure appears, click Next to install.

3. After completing the steps, you will see Taotao Music Conversion Star running and start running.

4. Then you will see an add file in the upper left corner of the interface. Click Add File to find your qmc3 file.

5. Then find the output format in the interface and click mp3 format to output.

6. Then you will see one-click conversion on the right, click to convert qmc3 to mp3 format.