# Files

A takeoff measures what's in the project: plans, drawings, site photos or a written scope. Give your assistant the files and it puts them in the job's Field24 project, exactly as if you had uploaded them on the web.

## Three ways to add files

1. **Attach them in the chat.** In ChatGPT and other apps that pass attachments along, attach the plans to your message and your assistant adds them to the project (up to 20 files per message).
2. **Files on your computer.** Desktop apps that can run commands, such as the ChatGPT desktop app, Claude Code, Codex or Cursor, upload the files straight from your disk. Tell your assistant where they are.
3. **Upload them yourself.** If neither works, your assistant gives you a link to the project's upload page on Field24.

Each file is reported on its own, so one bad file doesn't stop the rest.

## What a project accepts

| | |
| --- | --- |
| Plans and documents | PDF, DOC, DOCX, XLS, XLSX, CSV, TXT, MD |
| Photos and images | PNG, JPEG, WebP, HEIC, GIF, TIFF |
| Archives | ZIP, for plan sets that arrive zipped |
| Size | up to 300 MB per file |
| Per project | up to 200 files |

Executables, scripts, web pages, SVG and other archive formats are refused, as is any file that isn't really the type its name says.

## Seeing what's on file

Ask "what files does this project have?" and your assistant lists them. Generated documents, such as proposals, show up in the project too.

Index of all Field24 docs for agents: https://field24.ai/llms.txt