Editing Users in Bulk
When viewing the Users table, click Export in the bottom left to export the existing list of users (with any filters you may have applied). This export will include existing users, their roles, and any attribute values they have been assigned.
Attributes will appear as a header row along the top. To add/update or remove an attribute value from an existing user, simply update the cell (in the user row and attribute column). When you are done making your edits to existing users, click Create → Bulk Import Roster. Upload your edited roster and click Start Import.
Note: You can also add new users to the existing user list to edit and add new users all at once.