If you have issues editing files in Box (no edit button available):
Log into Box (ucla.box.com) with your UCLA logon ID.
On the left side of the menu, click on Apps:
Make sure that Box for Office for web is enabled, and if it isn’t, please add it to your Box account (no admin rights required, simply click on add).
Reload the web page or open an new tab and go back to ucla.box.com and you should be able to edit online or with Desktop Office.
Thank you!