Files and assets
Attach a document to a chat and the assistant can read it: a load schedule, a section from a standard, a supplier table, a drawing.
Which formats are read
| Format | Extensions |
|---|---|
| Documents | .pdf, .txt, .md, .markdown, .html, .htm |
| Tables and data | .xlsx, .csv, .tsv, .bin, .json, .jsonl |
| Images | .png, .jpg, .jpeg, .webp, .gif |
| Dlubal models | .rf6, .rs9, .rsc |
| CAD and geometry | .glb, .ifc, .dxf, .stl, .stp, .step |
| Structural exchange | .saf, .sdnf, .dstv, .dgn |
| Automation | .py |
General chat files can be up to 100 MB. Model uploads are capped at 50 MB, and Company Knowledge files at 20 MB. The table covers files accepted in chat and Assets. The Models panel has its own format list; see Models.
Example: you attach the client's load schedule as .xlsx and ask "use the loads from
the sheet for the purlin, and tell me which row you took". The answer names the row, which
is the point: a value you cannot trace back is a value you cannot sign.
Attachments need a paid plan
File attachments come with Professional and above. On Free and Starter, write the numbers into the message instead. That is not a worse answer, only a slower one to type.
Who can see an attachment
The chat it is attached to, and nothing else. Not your other chats, not a colleague's, unless you share that chat.
An attachment travels with a shared chat. Before sharing a chat as a link, check what is attached to it: a share link is a link, and whoever holds it can open the conversation and its files.
Assets are account-wide, not per project
A file you upload is available across your account rather than trapped in the project you uploaded it from. This is deliberate: a national annex extract or a company standard is used in every project, and having to upload it once per project would be busywork with a storage bill attached.
Where to go next
- Knowledge sources for documents your whole team searches.
- Models for geometry and Dlubal model files.