If you like the "ZX NEX File Viewer" please consider supporting it.
This extension adds a readonly file viewer for ZX Spectrum NEX files. .nex is a special file format for loading ZX Next programs. The viewer shows registers, a memory dump and the included screen images.
The NEX file format specification can be found here.
Install through Visual Studio Code Marketplace. The extension is called "ZX NEX File Viewer".
Just click on a file with the *.nex extension. The file is opened and shown in the text editor area.
Alternatively you can open a NEX file via "Open With...":
When hovering over a value you can get additional info like the offset or the value in decimal:
