Upload files and images
You can attach files to any message you send Dash, whether in Slack, Teams, on the web, or from the Chrome extension. Dash reads the content and uses it as context for your request.
What Dash can read
Section titled “What Dash can read”- Images (PNG, JPG, GIF, WebP) — Dash sees the image and can describe it, extract text, answer questions about what’s in it, or use it as reference for a task.
- PDFs — Dash extracts text and layout, page by page. Works for reports, contracts, invoices, presentations saved as PDF.
- Spreadsheets (XLSX, CSV) — Dash reads the data and can analyze, filter, chart, or summarize it.
- Word documents (DOCX) — Dash reads the text and formatting.
- Audio files (M4A, MP3, WAV, WebM, OGG) — Dash transcribes the audio and uses the transcript as context. This includes Slack voice notes.
- Text files — plain text, Markdown, JSON, code files.
How to attach
Section titled “How to attach”In Slack or Teams: use the attachment control or drag and drop a file into the message box, then type your question alongside it. In Slack, you can also forward a message that contains an image or paste its permalink — Dash sees the image just like a direct upload.
On the web: click the attachment button in the chat input, or drag and drop.
In the Chrome extension: click the attachment button in the side panel.
Forwarded messages in Slack: you can forward a message that contains an image to Dash, or paste a Slack permalink to one. Dash sees the image the same way it would a direct attachment.
Size limits
Section titled “Size limits”Audio files are capped at 25 MB (the limit of the transcription provider). Other files don’t have a hard cap, but very large files may be truncated to fit the conversation context.
What Dash won’t accept
Section titled “What Dash won’t accept”Dash blocks executable files and mobile app packages from being uploaded. This includes native binaries, Android packages (APK, AAB), iOS app bundles (IPA), and Dalvik bytecode (DEX). If you try to attach one, Dash tells you it can’t load it and offers to help another way.
What Dash produces
Section titled “What Dash produces”Dash can also create files and attach them to its response:
- Spreadsheets — data analysis results, formatted reports.
- PDFs — generated documents, summaries.
- Word documents — drafted memos, reports, proposals.
- Images — charts, diagrams.
These appear as downloadable attachments in the conversation. Links stay valid for 30 days.
What’s next
Section titled “What’s next”- Ask Dash for a report to see how Dash turns data into polished output.
- Give Dash feedback if the output format isn’t what you expected.