Converse with Uploaded Documents in CometAI

Table of Contents

CometAI allows you to upload files directly into a chat and ask questions about their contents. You can upload various document types, have various Language Models analyze or summarize them, and revisit them later without needing to re-upload. Firstly, Open the CometAI platform in your browser and log in using your UTD NetID and password.

• Instructions
• Supported File Types and Usage Notes
• Important Notes

Instructions

• Start in a New or Existing Chat.
• Click on the Plugin Selection, and enable the RAG feature option as shown in the figure.

• From the main chat window, click the Plus icon located at the bottom left of the message bar.
  • Your file selection window will open.

Upload Your Document

• In the file selection window, choose the file you want to upload.
• Click Open to attach the document.
  • Depending on the document size you uploaded, the upload might take some time.

• Once the document is completely uploaded, it will appear as an attachment above the text input bar with a green tick mark symbol. This indicates the file has been uploaded successfully & its embedding have also been created. 

  • If you start typing and send a message, the attached document will automatically be included in the conversation. 

• Type your question into the chat and press Enter.
  • The Model will process the document and respond based on its content.

Access and Manage Uploaded Documents

• To find previously uploaded documents, click the pages icon at the bottom left of the chat window.
• A "Files" pop-up window will appear, showing all available files.
• From this window, you can:
  • Download a file
  • Delete a file
  • Sort by file type, date created, or name (Currently the Sort By functionality causes the File Upload Module to close. The Team is working to rectify this bug).
• Click a file’s name to add it to the current chat.

Files Window Features 

• Files - The files tab shows all the uploaded files from different sources e.g. uploads from local device, uploads from OneDrive/SharePoint, Artifacts and uploads using File picker. 

• Tags - Shows your file tags so you can attach a whole group of labeled files at once. Selecting a tag pulls in every uploaded file with that tag for chat/RAG, instead of picking files one by one. NOTE: File Tags are not working currently, please avoid this feature until notice. 

• Docs - Filtered view of document-type files from your library (Word, PDF, Markdown, Text, HTML). Same sources as Files, limited to docs only. 

• Slides - Filtered view of presentation files (PowerPoint, Google Slides). Same library as Files, limited to slides only. 

• OneDrive - Browse your connected Microsoft OneDrive and attach files into CometAI. Selected files are brought in from OneDrive, then uploaded/indexed like other files. 

• SharePoint - Browse connected SharePoint sites, libraries, and folders, then attach documents into CometAI the same way (import → upload → index for chat). 

For more information regarding OneDrive/SharePoint Integration, please review this Article -  Microsoft Integration - CometAI

Files Upload Status Levels

Flow: starting → processing → completed or failed 
(terminated can cut that short.) 

Chat impact 

• Completed → vector RAG can use the file 

• Starting / Processing → may wait, requeue, or fall back to extracted text 

• Failed / Terminated → indexing broken; use reprocess or admin fix 

• ----- → embedding hasn’t started or wasn’t found 

Icons next to Status (actions) 

• Blue refresh — check again; file may still be processing (shown when not completed and recent, ≤ ~5 min) 

• Gray reload — regenerate text extraction + embeddings (failed, or stuck longer than ~5 min) 

Supported File Types and Usage Notes

Important Notes

• Limitations for file uploads are still being tested.
• Uploaded file performance depends on the model’s context size and file complexity.
• Large or complex files may take longer to process.
• For best results with spreadsheets, keep data sets small and use a higher-capability model.

Best Practices

• It is recommended to use-excel file with single sheet if possible.
• Guidance on using the correct model for your case on Use-Case based Model Selection Guidance in CometAI 
• Start small by uploading fewer, smaller documents first. Review the results, refine your prompt, then gradually use larger files, more documents, and higher-capability models as needed.