I am unable to get extension of audio file when using expo-document-picker

expo-document-picker is getting the data correctly for all images and videos but when I pick a audio file it does not have it’s extension.

Data I get via file picker:
Object {
“name”: “AUD-20200911-WA0067”,
“size”: 228339,
“type”: “success”,
“uri”: “file:///data/user/0/host.exp.exponent/cache/ExperienceData/%2540calendar-app%252FCalendar-app/DocumentPicker/6198429c-5d08-46b5-a6c8-caf4c1e84d3d.”,

There’s no mention of extension for this audio file.