Nexus Mod Manager is an application designed and created exclusively for this type of operation. It also supports Skyrim to make it easier to manage and install mods or any other custom files. Download another copy of the application and make sure the Skyrim game is properly installed on your computer or it won't work. However, there is an online guide which explains how to install mods and custom files to Skyrim or to any of the supported games available.
Nexus Mod Manager is a Windows-only application which means that it will run on desktops where the mentioned operating systems is running.
The XBOX ONE is running a custom version of Windows 10 as well, but that is heavily optimized for console and doesn't work with EXE files.
There is no way to install custom apps on XBOX ONE, only those supported on the Marketplace.
Nexus Mod Manager is an application designed and created exclusively for this type of operation. It also supports Skyrim to make it easier to manage and install mods or any other custom files. Download another copy of the application and make sure the Skyrim game is properly installed on your computer or it won't work. However, there is an online guide which explains how to install mods and custom files to Skyrim or to any of the supported games available.