Attachments: all your files

Attachments (in the menu on the left) lists every file you got or sent, from all your accounts, as Gmail lists mail: a row per file with its kind in colour (or the picture itself), its name, the sender, the size and the date. The colours are the chips' own: PDFs red, documents blue, spreadsheets green, presentations orange, pictures violet, archives brown, anything else grey. The toolbar says how many files there are and how much room they take.

• The chips choose a kind (Pictures, PDFs, Documents, Spreadsheets, Presentations, Archives, Other; again to show all) and Any time finds older files (older than a week, a month, 6 months, a year). Type part of a file name or a sender to find it. Newest first in the toolbar puts the oldest, the largest (good for making room) or the names first.
• Click a row to read its conversation. With Split pane on (the button at the end of the toolbar, as in Mail) it opens beside the list or under it, and j/k go through the files; without it, it opens over the list. Esc, ✕ or the browser's Back button close it. Open in Mail shows it as a page in Mail.
• Click a file's coloured tile (or its picture) to see a picture, a PDF or a text file here; ← and → go to the files before and after it. Anything else downloads. A picture's tile shows the picture. In a conversation each file is a card with the picture or a PDF's first page: click it to see it, or Download all.
• Under the pointer a row shows Preview, Download, Delete and ⋮ (preview, open in a new tab, forward the message, archive, move, label, star). Deleting a file deletes its message: it goes to the Trash with every file in it, and Undo brings it back.
• Drag a file onto a folder, a label, Starred, Snoozed or the Trash on the left, as you do with mail; drag a label onto a file to label its message.
• Tick files (or the box in the toolbar for the whole page) to download them as one ZIP (up to 50 files, 100 MB), or to archive, move, label or delete their messages together. Mail's keys work here: x ticks, s stars, # deletes, e archives, v moves, l labels.

Files come from your mail server the first time you open them.