I rely on Microsoft 365 for work while commuting on a train with no signal for hours. Here's what actually works offline and what doesn't.
To make the most of working with Office 365 offline: office 365 offline
When you install Microsoft 365, the full versions of apps like are downloaded to your device. I rely on Microsoft 365 for work while
While offline, applications continue to save your changes to local memory. office 365 offline
To use Office 365 applications offline, you'll need to install the desktop versions on your device. These versions are available for Windows and macOS. Once installed, you can use the applications without an internet connection. However, you'll need to activate the applications online at least once to validate your subscription.