The community members discuss the possibility of training Excel files using the LlamaIndex library. One community member suggests using the Excel loader if the Excel file is simple, or looking into the Pandas or SQL index if the file is more complex. Another community member asks if the SimpleDirectoryReader could be used for Excel files, noting that it worked well for PDF and DOCX files. However, a final community member indicates that Excel files do not appear to be supported by the LlamaIndex library based on the code reference provided.
