Make sure you have your connections set up in FileBrowser, such as Computers, File Servers and Cloud storage accounts.
Ensure you have FileBrowser running in the background before trying the next steps.
Start Word or another editor and select 'Open' then 'More'
Select 'FileBrowser' then 'Network Folders'. If FileBrowser isn't listed, please launch the Files app, tap Edit and enable FileBrowser, then switch back to here.
In 'Network Folders' you now have access to folders and files on all available connections
Tap through to the desired folder and open the file to edit
When you've finished editing, tap the back arrow in the top left corner and FileBrowser will save your document back to the original folder.