● Step 1、 Open the Free Zip Extractor Pro, choose the files you want to convert (Press the Ctrl key to choose multiple files).
● Step 2、 choose 7Z and click "OK".
● Step 3、 You will see the converted 7Z format file.
If input file is encrypted, user needs to provide correct password to perform archive conversion, otherwise archive data will not be readable and extraction stage will not complete.