Upload as Text xlsx file are not supported

[diogene60]

What happened?

Hello,
I have install librechat api rag api as docker container and iam using mistral ai api.
Can upload files such as pdf, ppt and docx as Text but files like xlsx xls md txt json are not uploaded I got this error

when uploading for file Search it works for xlsx xls txt pdf docx ppt and not supported for md or json
Is there anything to do for having this working ?

I have set this in the librechat.yaml but it does not work

fileConfig:
  endpoints:
    assistants:
#      fileLimit: 5
#       fileSizeLimit: 10  # Maximum size for an individual file in MB
#       totalSizeLimit: 50  # Maximum total size for all files in a single request in MB
      supportedMimeTypes:
         - "image/.*"
         - "application/pdf"
         - "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"  # Excel .xlsx
         - "application/vnd.ms-excel"  # Excel .xls
         - "application/vnd.openxmlformats-officedocument.wordprocessingml.document"  # Word .docx
         - "application/vnd.openxmlformats-officedocument.presentationml.presentation"  # PowerPoint .pptx
         - "text/plain"
         - "text/csv"
    assistant-colors:
      supportedMimeTypes:
         - "image/.*"
         - "application/pdf"
         - "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet"  # Excel .xlsx
         - "application/vnd.ms-excel"  # Excel .xls
         - "application/vnd.openxmlformats-officedocument.wordprocessingml.document"  # Word .docx
         - "application/vnd.openxmlformats-officedocument.presentationml.presentation"  # PowerPoint .pptx
         - "text/plain"
         - "text/csv"

Version Information

docker images | grep librechat
ghcr.io/danny-avila/librechat-dev-api            latest    4aac21e12811   2 days ago      1.26GB
ghcr.io/danny-avila/librechat-rag-api-dev-lite   latest    2f812738600a   10 days ago     1.67GB

Steps to Reproduce

What browsers are you seeing the problem on?

Microsoft Edge, Chrome, Firefox

Relevant log output

docker logs -f api_librechat

2025-08-28T15:40:05.706Z error: Invalid file format. The server responded with status 422: Request failed with status code 422
2025-08-28T15:40:05.709Z error: [/files] Error processing file: Invalid file format. The server responded with status 422: Request failed with status code 422 - Received file with mi... [truncated]
2025-08-28T15:40:05.710Z debug: [/files] File processing completed without cleanup

Screenshots

No response

Code of Conduct

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[diogene60]

It is an ocr error
it means that the error was generated by Upload as Text because the ocr is for text extract not like upload for search.
so the md, xlsx xls mime are blocked when using upload as Text.
The discussion can be closed