Amazon Bedrock knowledgebase - Does knowledge base support JSON files in S3?

Hello.

The file formats that can be used in the knowledge base are those described in the following document.
I don't think JSON can be used.
https://docs.aws.amazon.com/bedrock/latest/userguide/knowledge-base-setup.html

• Plain text (.txt)
• Markdown (.md)
• HyperText Markup Language (.html)
• Microsoft Word document (.doc/.docx)
• Comma-separated values (.csv)
• Microsoft Excel spreadsheet (.xls/.xlsx)
• Portable Document Format (.pdf)

Also currently i can only provide a single file to the knowledge base. How can i add more files to knowledge base?

I think there is no problem even if the file is divided into multiple parts.
https://docs.aws.amazon.com/bedrock/latest/userguide/knowledge-base-setup.html

No chunking – Amazon Bedrock treats each file as one chunk. If you choose this option, you may want to pre-process your documents by splitting them into separate files before uploading them to an Amazon S3 bucket.