Files with cuid file extension can be often found on Android devices and appear to be related to Baidu service.
CUID file extension - Baidu.cuid data
What is cuid file? How to open cuid files?
File type specification:
The cuid file extension seems to be related to a baidu.cuid file found on certain Android devices in Baidu folder.
It appears to be generated by some app related to the Chinese Baidu service, but there also seems to exist a spyware called Baidu.
Can be safely deleted.
This cuid 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.
