Files with udx file suffix are related to the Philips Xenium mobile contacts data.
There is one other file type using
the UDX file extension!
.udx - PI Expert Design Software data
UDX file extension - Philips Xenium mobile contacts
What is udx file? How to open udx files?
File type specification:
The udx file extension is related to the Xenium, a series of GSM mobile phones, developed by Philips.
The udx file stores mobile contacts exported from Xenium phones.
Philips Xenium is obsolete product.
This udx file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.