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Use this page to quickly ground Alter with the files and folders that matter for your task.

Add context from Finder or apps

You can add content by dragging files or folders to the notch or The Hub. You can also use Right click > Add to Alter.

Supported content

Documents

.xlsx, .docx, .pdf, .txt, .md, .org, .rtf

Images

.jpg, .png, .heic, .gif, .tiff, .svg

Web content

.html, URLs, and dragged text

Email

.eml and Apple Mail messages

Audio

.mp3, .wav, .m4a, .aac, .flac

Code

Source files, config files, and scripts
Alter supports directory drops, OCR for images and PDFs, and automatic text encoding detection.

Audio and video transcription

When you add audio or video, Alter starts transcription automatically.
1

Drop one or more files

Drag media files to the notch or The Hub.
2

Wait for processing

Transcription starts automatically.
3

Ask targeted questions

Try: “Summarize key decisions” or “List action items by owner.”
For image analysis, use a model with vision capability.