Upload a dataset from the user

i am building a website that takes an excel file from the user, and display some graphs.

i wrote a client code and a server code but it always give me errors
i am using the file loader component,
if you can help me on this, i would be appreciated, thank you!

sure we can help


(now, if you really want some answers, you’ll need to first ask questions. here is some guidelines: How to ask a good question)

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