The Document, Not a Grey Card
Since v1.0.301 a.pptx, a .docx or an .xlsx no longer lands in the conversation as a grey file card with a name on it. All three render as the document itself, right where they land — so you can tell what Wolffish produced without opening anything, and what it produced is what you will see.
The change is not only a viewer. The three capabilities behind those files grew up alongside it, and that is the other half of this page.
Three Viewers
Decks — .pptx
A presentation comes through as its actual slides, with chevrons to page through them, and the whole thing again at full size when you expand it. Proportions come from the deck itself — from the first slide that actually rendered, not from a guess — so a 4:3 presentation is not letterboxed into a widescreen card.
Word documents — .docx
A Word file is laid out as real pages: its own margins, headings, tables, images, headers and footers, with a chip telling you which page you are on. The page fills the width of the card instead of floating on a grey desk, and the pager appears only when there is more than one page to move between.
Workbooks — .xlsx
A spreadsheet arrives as a grid that kept the file’s formatting: its fills, fonts, borders, number formats, merged cells, frozen panes, column widths and sheet tabs. Each sheet renders in its own direction, so an Arabic interface never flips a Western workbook.
[Color 3] instead of [Red] — is read from the palette Excel actually means, and numbers past the eighth no longer come out with no colour at all.
The same grid now powers the workspace viewer too, which until v1.0.301 flattened a workbook into plain HTML. And inside the chat, everything the file painted keeps exactly the colours it chose; only ink that would be invisible on a dark background falls back to something readable.
What Changed Behind Them
The viewers are the visible half. A generated.docx written the old way — every heading hand-styled — cannot survive a style change, and an .xlsx full of formulas could arrive empty.
The presentation capability
There is a newpresentation capability: read a deck, build one, edit it, and check it before you send it.
Building is not a thin wrapper over a slide library. You say what each slide is — a title, a section break, bullets, two columns, cards, stats, steps, a table, a chart, an image, a quote, a closing — and the layout engine owns the geometry, the type scale and the palette, so slides come out composed rather than assembled. The colour themes are the same eight tested palettes the PDF documents use, so a deck and its report look like they came from the same place. For the full manual, the guide is loaded through deck_design before anything is built.
Reading works on anyone’s deck — every slide’s text and speaker notes, in order — and editing is exact-match text replacement that leaves PowerPoint’s own structure untouched, because a generic rewrite is what makes PowerPoint refuse a file.
Documents that stay editable
Documents are now built on real named Word styles, which is how Word itself expects a document to be put together: open one, change the Heading 1 style, and the whole document follows. The pipeline around it gained three steps, and each closes a failure that used to reach you:Spreadsheets that recalculate
A workbook full of formulas could come back as a grid of empty cells: the formulas were written but no value was ever stored beside them, and anything reading the file without opening Excel sees nothing.- Every formula write now recalculates the whole workbook and stores the computed value alongside the formula — so the file reads back as numbers, everywhere.
- The result names any cell that evaluated to an error (
#DIV/0!,#REF!,#VALUE!), so it gets fixed before the file reaches you. - Charts are now native Excel charts that Excel, Numbers and LibreOffice all draw and you can restyle — in seven kinds — instead of pictures pasted in.
- Wolffish works to a stated standard for what makes a workbook good: formulas instead of numbers it worked out itself, every assumption in its own labelled cell, and the analyst’s colour convention — blue for inputs, black for formulas — in financial models.
Reading a Document Instead of Unzipping It
A deck you upload is now read properly instead of being unzipped by hand. The same is true on the workspace side: opening a document from the file tree uses the same viewers described here, not a text-extraction fallback.A PDF is a different pipeline with its own viewers, its own reading tools and its own design manual — see Documents & Media. The distinction the app draws is what the file is for: a PDF is a document someone reads; a
.docx someone opens in Word and edits, a .pptx someone presents, an .xlsx someone works in.On the Phone
The mobile app draws the same three cards, and since mobile v1.0.63 they take the shape of the page they are showing: a slide fills its card exactly, a document scrolls in the feed rather than paging, and the card an office file produces is the same width the agent’s other cards stop at.See Also
Built-in Capabilities
The document, pdf, spreadsheet and presentation capabilities in full
File Delivery
How a produced file reaches you on every surface
Mobile App
The phone’s own file viewers
Workspace
Where generated files live on disk