Files and Documents

Last updated October 28, 2026

Classgrid AI can read the files you upload and work with them: summarise a long PDF, pull numbers out of a spreadsheet, describe an image or turn a voice note into text. You can attach up to 6 files to one message.

File types it reads

Type	Files	What the agent does
PDF	`.pdf`	Reads the text, tables and pages.
Word	`.docx`	Reads the document text.
PowerPoint	`.pptx`	Reads every slide, including speaker notes.
Excel and CSV	`.xlsx`, `.xls`, `.csv`	Reads the sheets and data. It can also clean and analyse them in the code sandbox.
Text	`.txt`, `.md`	Reads the text.
Images	photos, screenshots, scans	Looks at the image and describes or reads it.
Audio	voice notes, `.mp3`, `.wav`, `.webm`	Turns speech into text.
Video	video files	Pulls out the audio and turns the speech into text.

How to add files

Upload from your computer

Click the paperclip (Attach file) in the message box, or type @ and pick Add photos & files ("Upload from computer").
Choose up to 6 files for one message.
Type what you want and send.

Reuse a file from your Library

Every file you upload, and every file the AI makes for you (PDF, Word, Excel, PowerPoint), is kept in your Library. Images you create are in the AI Hub under Images. Type @ and pick Add from library ("Browse and search your files") to attach one again without uploading it.

Voice notes and audio

Dictate: click the mic (Dictate) in the message box and speak. Your words are typed into the box for you to check and send.
Voice notes and recordings: upload an audio file and ask, for example, "Turn this voice note into text" or "Make notes from this meeting recording."
Videos: upload a video and ask "Summarise what is said in this video." For a YouTube link, just paste the link and ask for a summary.

Images

Upload a photo, screenshot or scan and ask about it:

"What does this error message on my screen mean?"
"Read the text in this photo of the notice board."
"Explain this diagram from the manual."
"Copy the items and prices from this photo of a bill into a table."

To make a new image instead, see Images.

What you can ask

Goal	Try asking
Notes	"Turn this PDF into clear notes."
Remember key points	"Make 15 flashcards from these slides." / "Create a quiz from a PDF."
Quick summary	"Summarise this 40-page report in one page."
Compare documents	"Compare these two contracts and list the differences."
Data	"Clean up messy spreadsheet data and show totals by month."
Reports	"Turn this sales sheet into a short progress report."
Meetings	"Turn this meeting recording into notes and action items."
New file	"Rewrite this as a Word document" or "Make a PDF from these notes."

Answers can come as answer cards, for example flashcards, quizzes, charts or score bars. To get a file back, see Code and data.

Tips

Say what you want from the file. "Summarise" is fine, but "List every deadline and who owns it" gets a sharper answer.
Point to the part you need. "Only chapter 3" or "just the sheet called Sales".
Attach related files together. Up to 6 in one message, so the agent can compare or combine them.
Ask follow-ups. The agent remembers the files in the chat, so you can keep asking without uploading again.
Check important numbers. For money, dates or contracts, ask the agent to quote the exact line or cell it used.

Want to use a file from Google Drive, Notion or another app? Connect it as a plugin and ask the agent to find it, for example "Find last week's invoice in my Drive."