Microsoft plans to launch a preview version of its universal office apps for Windows 10 for phones sometime before the end of April. The company previously launched touch-based versions of Word, Excel and PowerPoint for Windows 10 PC preview users in February.
Here's what Microsoft had to say about the apps:
Our Office Universal apps are designed for on-the-go productivity. They're touch-first, built for tablets and phones, and optimized for viewing, quick edits, notes and mark-up. On a tablet, the Universal apps are fast, fluid, and streamlined for an immersive, hands-on experience. They're fantastic for reading and perfect for touch- and pen-based content creation. On a phone, the Universal apps adapt to the smaller form factor. Commands and controls are moved to the bottom of the screen so you can triage your work and make edits one-handed with your thumb. (That may sound like a small thing—but wait until you try it. It makes all the difference!)
Today's announcement strongly hints that Microsoft might release a new build of Windows 10 for phones by the end of the month as well. The current 10051 build cannot open any Office files as one of its known issues.