Decoding the Mystery: Which File Types Actually Work with OpenAI Assistants?

If you're diving into the world of OpenAI Assistants and their file retrieval/search capabilities, you've likely stumbled upon a common frustration: conflicting information about supported file types. The official documentation lists certain file types as compatible, but real-world experience often tells a different story. Let's unravel this confusion and clarify which file types you can reliably use with OpenAI Assistants.

The Official (and Sometimes Confusing) List

According to OpenAI's official documentation, Assistants should support a range of file types, including:

• .pdf
• .txt
• .docx
• .pptx
• .html
• .json
• .csv
• .xlsx

However, users frequently encounter errors when attempting to upload .csv and .xlsx files, particularly to vector stores. This discrepancy raises a crucial question: Why the disconnect between documentation and reality?

The .csv Conundrum: A Case of Contradictory Information

The situation with .csv files is particularly perplexing. While the official list includes .csv, there's also a statement within the documentation suggesting that .csv isn't supported. This apparent contradiction leaves users unsure whether or not they can utilize .csv files with Assistants.

Unofficial file type support

• .py
• .js
• .css
• .php
• .rb
• .c
• .cpp
• .java
• .go
• .kt
• .scala
• .ts
• .cs
• .html

Troubleshooting File Upload Issues

If you're experiencing difficulties uploading files to OpenAI Assistants, consider the following troubleshooting steps:

• Verify the File Format: Double-check that your file is indeed in the correct format and doesn't contain any hidden characters or encoding issues.
• File Size Limits: Be mindful of any file size limitations imposed by the Assistants API. Large files may fail to upload.
• API Updates: OpenAI's API is constantly evolving. Ensure you're using the latest version of the API and that your code is up-to-date.
• Error Messages: Pay close attention to any error messages returned by the API. These messages often provide valuable clues about the cause of the issue.
• Try different embedding models: Different embedding models may handle file types differently. Experiment with different models to see if one resolves the upload issue.

Staying Up-to-Date

The landscape of OpenAI Assistants and supported file types is constantly evolving. To stay informed, consider the following:

• Monitor the OpenAI Community Forum: The OpenAI Community Forum is a valuable resource for sharing experiences, troubleshooting issues, and staying abreast of the latest developments.
• Consult the Official Documentation: Regularly review the official OpenAI documentation for updates and clarifications.
• Experiment and Share Your Findings: Don't hesitate to experiment with different file types and share your findings with the community. Your experiences can help others navigate the complexities of OpenAI Assistants.