Question File with a blue page icon

[rayb1201]

Have a file that has a blue page with the corner fold it over for the Icon.
How do I open it?

 

[fuzzylumpkin]

Long press it and tap details to find the file extension.
Assuming you are viewing it in a file manager.

 

[B. Diddy]

Welcome to Android Central! Where are you seeing this? Which phone do you have, and which app are you using to try to open it?