Minecraft: Windows 10 Edition - "Could not connect to the world"

... I am transferring a Minecraft world from xbox one edition Minecraft to Java edition and Windows 10 edition.

The Minecraft Xbox One Edition only works on the Xbox One Edition.

You might want to upgrade to the Minecraft (without Xbox One Edition in the name) on your Xbox. If you bought Minecraft Xbox One Edition digitally, you can upgrade to "Minecraft" for free.

Then you can import your world from the Xbox One Edition to "Minecraft" for Xbox One.

However, the Support page for Windows 10 Minecraft states: "The Windows 10 Edition does not currently support the transferring of worlds from other devices."

So you can't transfer your world between devices.

You might have to move your World to a paid online Realm server to access it. Or you might have to run your Xbox One Minecraft in Multiplayer, and connect to the running world on your Xbox One with your Windows 10 version.

But you can't have your World separately transferred from Xbox to other devices.

As I said, you can try hosting your world on a Realm server (which you need to pay for), and can then access it with Windows 10, Xbox One, Android, iOS and Nintendo Switch.

But not JAVA.

Hi DimmerMedusa11. To connect and play in the same world online in Minecraft: Windows 10 Edition, your kids will need to enter a Realm together. Realms, which you can read about the introduction to Windows 10

here, are a dedicated online world that lets players on Windows 10, as well as Pocket Edition and the Xbox One Edition invite their friends to play and create. Realms are available for a 30-day free trial, but after that it's a monthly subscription,
as the world is hosted on Mojang and Microsoft's servers rather than any of the individual players' devices.

To access Realms, launch Minecraft: Windows 10 Edition, click on Play. From there, if you see "30 Day Free Trial", click on it and it'll show the Realms info, as well as the cost after the trial period ends ($7.99/month). From there, go ahead and click
"New Realm" and set the world up as you would any Minecraft world. If you don't see "30 Day Free Trial" button in the list of playable worlds, click "Create New", select "New Realm" in the menu across the top. From there, you can either import an existing
world from either child's world list or create a new world entirely. Hope I helped answer your question!

I could not find and download Minecraft Windows 10 Edition in the Microsoft Store app.

Edit: didn't work on downloading the minecraft launcher

I own minecraft "windows 10 edition" on xbox one but isn't availabile on windows 10.... i've buyed it because I thought that I could use it on both platform and have the same edition, with xboxlive functionality. (multiplayer crossplatform and same worlds
and friends on pc and xbox, all synced on cloud)... Can I do something to make it real?

thanks

Only the bedrock version

In the Bedrock Edition, each Minecraft World has its own separate folder and is located at games/com. mojang/minecraftWorlds location on Windows 11/10