Files Overview
The Files App by Zettlab differs significantly from its competitors. We aim to enable the built-in AI engine to start processing your uploaded data automatically in the background, including audio, video, images, and documents.
Of course, you can configure whether to enable AI, its operating times, and more in the Settings. For details about the AI engine's working principle, refer to "7. Appendix."
Interface Overview
In Files, you can easily manage, preview, and share all files stored in your NAS. The interface consists of a left sidebar (directory bar), a top toolbar, and the main display panel, where you can perform all file operations. 
File Directory
The file directory includes four sections: Space, Sharings, Label, and Location.
Space
- Teams: Public space displaying shared team folders. Only admins can manage it, while regular users can view or edit it if authorized.
- Personal: Personal space showing folders created by the user.
- Users: (Visible only to admins) Displays all users' personal folders.
- App Folder: (Visible only to admins) Shows folders mounted by NAS apps for storing data generated by the apps.
Sharings
- Shared by Others: Displays files or folders shared by other users within the NAS, visible only to the selected users.
- My Shares: Shows files and folders shared by you, including external sharing information. Only you can view and manage this section.
Label
- Type: After uploading files, the NAS automatically categorizes them into types like Images, Videos, Audios, Documents, Zip Files, BT, etc.
Most importantly, users can filter files using tools like Color, Tags, Rate, and Metadata. Admins can view all files, while regular users can only see authorized files.
- AI Categories:
- After uploading images and videos, the local AI LLM processes the data and automatically categorizes it.
- Users can create new categories using words, phrases, or sentences. For example, creating a "gray machine" category will automatically classify relevant images and videos into this folder.
- Tags: View, delete, or add new tags for files with custom tags.
Location
Supports mounting mainstream cloud storage services like Google Drive, Dropbox, OneDrive, and SMB services from other devices.
Toolbar
| Serial Number | Name | Function Description |
| 1 | Smart Search | Supports semantic (local AI feature) and keyword searches for files and folders. |
| 2 | Image Search | Supports uploading images to search for similar image files or network links. |
| 3 | Address Bar | Displays the current path and supports clicking to navigate to the parent folder. |
| 4 | Refresh | Refreshes the current folder address and file directory to show the latest content. |
| 5 | Copy | Copies the selected file or folder (right-click the target location and select "Paste"). |
| 6 | Delete | Deletes the selected file or folder. |
| 7 | View Details | Views detailed information of the selected file or folder, **including OCR content, video summaries, and speech-to-text content.** |
| 8 | Sort | Supports sorting by Name, Size, Type, Imported Time, Modified Time, Color, etc., and supports ascending and descending orders. |
| 9 | Filter | Supports filtering files by Color, Tags, Type, Rate, and Metadata. |
| 10 | View | Changes the display panel view, including Waterfall, Grid, and List modes. |
| 11 | New | Creates a new file or folder in the selected folder. |
| 12 | Upload | Uploads files or folders to the selected folder. |
View Information
View AI Processing Status
Uploaded data needs to be processed by AI before it can be searched. Select a file in Files and click the exclamation mark icon (!) in the top-right corner to view the Task Status. If it shows "Processing," the data is still being processed. If it shows "Finished," the data has been processed.
View Photo Material OCR Information
Select an image and click the exclamation mark icon (!) in the toolbar to open the file details. If the image contains recognizable OCR content, it will be displayed in the OCR section.
View Speech-to-Text Information
Select an audio or video file and click the exclamation mark icon (!) in the toolbar to open the file details. The content summary and detailed speech-to-text content will be displayed here.
Display Panel
Basic File Operations
The display panel is the main area for showing files and folders. You can browse and manage your files flexibly here. Right-click on a folder or empty space to perform actions like upload, download, copy, or share. 
Preview Images
Hover over the magnifying glass in the bottom-right corner of an image to preview it without opening it. 
Preview Audio and Video
Hover over the progress bar of a thumbnail to preview different parts of an audio or video file.
ShareExternally
Share files externally with one click, generating online preview links and extraction codes. You can also set a sharing validity period.
Comment on Shared Files
Recipients can preview and comment on shared materials without logging in, improving communication and efficiency. 
Image Search
There are three ways to search for images using other images:
- Right-click an image and select Search by Image.
- Click the camera icon next to the search bar in the top-right corner, upload an image, or enter a network image link to search for similar images in the NAS.
Restore Deleted Files
Click the trash can icon at the bottom-left corner of the file management interface. Select Restore to recover deleted files.
Appendix
To help you understand how Files processes data, here is the AI engine's processing method for different data types:
| Uploaded Data Type | AI Processing | Core Function |
| Image | OCR | Smart Search (Support Neural Language and Image input, in Files) |
| Vectorization | Smart Search | |
| Auto-Tagging | AI Classification (in Files) | |
| Face Recognition | Face Classification (in Photos) | |
| Color Clustering | Color Filtering (in Files) | |
| Metadata Extraction | 1. Smart Search 2. Smart Filtering (in Files) | |
| Video | Vectorization | Smart Search |
| Audio Extraction | Smart Search | |
| Metadata Extraction | 1. Smart Search 2. Smart Filtering (in Files) | |
| Audio | ASR Transcription | 1. Smart Search 2. Caption Export (in Clip) 3. Audio Editing (in Clip) |
| Metadata Extraction | 1. Smart Search 2. Smart Filtering (in Files) | |
| Document | Vectorization | RAG/Document Q&A (in ZettAI) |