Why can't i upload word documents online

[Android Central Question]

I've been trying to upload my cv as docx document but it's uploading it in numbers e.g 1876 instead of docx which leads to the system saying the file is not recognised, what could be the problem?

 

[chanchan05]

To what are you uploading to? Can't you just share it via Dropbox/GDrive/OneDrive?