You can open Dropbox files in Windows File Explorer. Learn how to switch from the Dropbox app to File Explorer in Windows 11/10.

Click Open. If the app that you want to use to open the file type is greyed out, it's because macOS doesn't think there's a valid association between the two.

Learn how to use a Microsoft 365 setting to choose whether to open files in the online or desktop app, giving you full control for each file.

CSV files are special text files that are quite common when dealing with spreadsheets. Here's how to open and make them.