WD My Passport Ultra files cannot be opened

I usually use my WD My Passport Ultra at school to back up my files. I brought my Passport home and connected it to my laptop but any file I try to open, I get a message saying it cannot be opened.

Me too. I am using WD My Passport Ultra 1 TB. It cannot be detected.

I searched you tube to try on any solution to format exFAT. Still unable to detect the disk.

I have wrote to contact WD support page. There is a support asked reply to me to download WD utilities App to test and format it. I have tried but it is still failed to format in Mac. or Window. Anyone or until now what did u do? Any expert or support able to help you in the end?

If there is any expert able to help me here kindly advise me below:
whatsapp +853 66266632
WeChat: buqianxin007

Many thanks!