# File storage

Manage volumes, folders, and files in catalog file storage. Open the relevant action page to inspect, create, update, upload, preview, download, or delete the target resource.

## Choose a task

| Task | Description |
| --- | --- |
| [Inspect a root volume](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/get-volume.html.md) | Query root volume details by ID. |
| [Add a root volume](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/create-volume.html.md) | Create a root volume under the specified database. |
| [Change volume details](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/update-volume.html.md) | Update the volume's name and description. |
| [Remove a root volume](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/delete-volume.html.md) | Delete a root volume after handling its files and references. |
| [Locate a volume](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/get-volume-path.html.md) | Gets the full path of the volume in the catalog hierarchy. |
| [Browse volume files](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/list-files.html.md) | Read files by page with exactly one `volume_id` filter. |
| [Inspect file metadata](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/get-file.html.md) | Query file details by file ID. |
| [Attach files to a volume](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/create-file.html.md) | Associates one or more existing file records to the specified volume. |
| [Check file-update limitations](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/update-file.html.md) | The current implementation does not persist name changes; success does not mean the file was renamed. |
| [Remove a file](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/delete-file.html.md) | Delete the specified file. |
| [Upload an unlinked file](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/upload-file.html.md) | Upload a file that is not associated with a volume. |
| [Read inline file content](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/preview-file.html.md) | Preview files as inline content. |
| [Save file content](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/download-file.html.md) | Download file contents. |
| [Add a folder](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/create-folder.html.md) | Create a folder under a volume or existing folder. |
| [Change folder details](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/update-folder.html.md) | Update folder information; checking if `name` is a valid identifier when provided. |
| [Remove a folder](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/delete-folder.html.md) | Delete the specified folder. |
| [Remove all folder contents](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/empty-folder.html.md) | Delete files and subfolders within the selected folder and its descendants. |
| [Start associated file workflows](https://omnifabric.cloudsigma.com/docs/reference/api/ai-studio/resource-center/catalog/trigger-file-workflow.html.md) | Triggers the workflow associated with the specified file and returns the actual number triggered. |