添付txtファイルをダウンロードせずに表示する方法はありますか？

[Heliosurge (Dan DeMontmorency)]

I believe so. If pdf can work for your needs there is this theme component. But says desktop only.

Inline PDF Previews

Summary Inline PDF Previews is a desktop-only theme component that will allow you to create previews for pdf attachments. Preview Preview on theme-creator.discourse.org Repository Link https://github.com/discourse/discourse-pdf-previews New to Discourse Themes? Beginner’s guide to using Discourse Themes Install this theme component Samples after [pdf-previews-after] before [pdf-previews-before] Notes Like I…