As we all know, X Lossless Decoder only has a Mac version. If you are a Windows user and need an XLD Windows alternative, here is the best choice - HD Video Converter Factory Pro. It can batch convert among all sorts of audio formats including WAV, FLAC, ALAC, AAC, AC3, AIFF, AMR, AU, FLAC, MP2, MP3, DTS, M4A, ALAC, M4R, M4B, MKA, OGG, WAV, WMA, and more. It can also extract audio files from video and then convert them to the audio format you want. With the XLD Converter alternative, you can easily adjust the output audio file's settings, such as downmix 5.1 to stereo, change audio bitrate, sample rate, and so on.
Now, free downloadfree download this software to convert your lossless audio files.