If you want to preview a file without open it fully in a new tab use the Preview File Button in the bottom bar menu.
To use it click on a link in your cell or image and the modal will open in a couple of seconts.
The preview button can open documents, images, pdfs, images, even video or audio files.
It might take a second or two depending on the file to open the preview modal.
You can open images, pdfs, slides, docs and more.