SPX to M4A Converter
Convert your spx files to m4a online & free
Compressed Audio File
How to convert SPX to M4A
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose "to m4a"
Choose m4a or any other format you need as a result (more than 200 formats supported)
Download your m4a
Let the file convert and you can download your m4a file right afterwards