As the title says... here we can share information and updates for anyone with Singapore Visa Office.
To save time for everyone... please include your Timeline such as the dates for:
Outland / Inland ?
Application submitted=
Biometric request date =
Biometric submitted date =
Medical request...
That international.gc.ca is Global Affairs Canada, which is legit. But I don't see the connection with your Spousal Sponsorship, unless it relates to CNI (approval to remarry).
It's safe to open files as long as it's not a program like *.exe