We could add functionality that tries to guess what type of data is saved to the field, and display a preview accordingly:

• Images.
• Videos.
• Sounds.
• Support decoding base64.
• Encoded strings (utf8, utf16le, utf16be, etc.).

This could also add an ability to export it to file with an expected "file extension".

https://www.npmjs.com/package/file-type might come in handy for this.