Clicking the “Download all data” link will download a .csv file with the computed features and metrics of every cell in the database. This file also includes all the information the interface needs to produce the web-page, so columns related to visualization image paths can be ignored.
Downloading computed features for a subset of cells
Clicking the “Use the current filter with the SDK” link will open a page with a snippet of code which will enable you to download just the computed metrics for the cells you are interested in.
Briefly, you will need to create an Jupyter python notebook and install the Allen SDK. Instructions for this are available from the SDK tab in the banner menu. From the install guide you can install the Allen SDK.
Accessing data from the Allen SDK