In the upcoming version I have started working on the preview of documents in the list. This is also one of the requests from app users, and an improvement that should make working with documents easier. The functionality is optionally enabled on the list of documents. In the case of images, you will be able to see their entire preview, and in the case of text documents - their first few lines.
I tried to introduce previews for all supported document types so far. Of course for some of them (like encrypted files) preview wouldn’t make sense. Depending on the type and size of the file the preview loading time may be different, but generating the preview happens in the background and should not have a big impact on the smooth running of the application.