How do I load file from files folder?

I have a doc file that I would like to open whenever i click on button.

There can be any file extension not only doc. For example, If user clicks on button, it should load a file from the files folder, file.pdf, it should be opened using the default program to view this file or using the broswer.

Is this possible yet?

https://www.scirra.com/manual/162/nwjs

nw.JS Run file action

[quote:w0ak6rgd]Run file

Run the file at an existing file path. This is analogous to double-clicking the file in the OS file explorer. For executable programs, it will attempt to run the program; for other file types, it will open the default associated program, such as the system default image editor if an image file is given.

Thank you!