> For the complete documentation index, see [llms.txt](https://learn.canceridc.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.canceridc.dev/portal/data-exploration-and-cohorts/understanding-cohorts.md). # Data selection and download IDC Portal offers lots of flexibility in selecting items to download. In all cases, download of data from IDC Portal is a two step process: 1. Select items and export a manifest corresponding to your selection. 2. Use command-line python tool or 3D Slicer IDC browser extension to download the files for your selection, as discussed in [Downloading data](/data/downloading-data.md) . {% hint style="success" %} "IDC manifest" is a text file that contains URLs to the files in cloud buckets that correspond to your selection. It will contain one line for each DICOM series, as IDC files are organized in series-level folders in the cloud storage. {% endhint %} ## Downloading content using Cart You will see "Cart" icon in the search results collections/cases/studies/series tables. Any of the items in these tables can be added to the cart for subsequent downloading of the corresponding files. Get the manifest for the cart content using "Manifest" button in the Cart panel.

## Downloading all of the files for the current search configuration Clicking "Manifest" button in the "Cohort Filters" panel will given you the manifest for all of the studies that match your current selection criteria.

## Download individual studies or series Studies table contains a button for downloading manifest that will contain references to the files in the given study. To download a single series, no manifest is needed. You will see the command line to run to do the download.

## Downloading images in the viewers If you would like to download the entire study, or the specific image you see in the image viewer, you can use the download button in the viewer interface.