Microsoft on Friday made its file manager app for Windows Phone 8.1, simply called Files, available for download for free from the Windows Phone Store. The firm had said it would try to get the app out by the end of May.

Microsoft's Joe Belfiore said the firm would deliver this app in a an early May Reddit AMA.

"We are doing a File Manager for WP8.1!" he wrote. "I know a LOT of you are looking for this (thanks for the tweets, I've read them all). In fact, I've been running a build of it on two of my phones for the last week or so and it's getting to pretty good shape. We are expecting to get it into the store HOPEFULLY by the end of May."

Well, they made it. Exactly four weeks after that comment, on the second-to-last day of the month, Microsoft made the Files app—as its called—available as a free download.

As I noted previously in Windows Phone 8.1 Tip: Master Storage, Windows Phone 8.1 almost doesn't need a file manager app per se, as much of this functionality is built right into the Storage Sense settings app that's part of the OS. But that app is a bit hidden, as its functionality. And the Files app does in fact expand on the file management capabilities that are built into the OS.

For the most part, you'll get the most value out of this app on phones with both internal and microSD storage, as it's particularly useful for moving files between both places. But a few features are useful for those with no microSD expansion as well.

Top-level ("Home") view of the Windows Phone file system

Microsoft says the app provides the following features:

  • Access files stored on your phone and SD card
  • Browse, search and launch files
  • Easily share one file or multiple files
  • Create folders to organize your files
  • Copy, move, rename and delete files

Top-level view of my microSD card

In a quick run-through with the app last night, I was struck by how fast it performs. I'm curious to see whether I have much use for it going forward.

Items waiting for selection

You can download Files from the Windows Phone Store.