ChatGPT's inability to read Excel files

I’m in the exact same situation.

Having the same problem.
XLS and CSV files not recognized for over a month!
Does anyone have a successful experience with XLS analysis these days?

I’ve tried to connect with support, but there’s only an AI assistant… Is there a way to talk to a human on this?

Hey there!
Have you eventually fixed that?

I just used normal ChatGPT not the Data Analyst and it worked for me now. Read the excel spreadsheet like it did before in Data Analyst

I have been also experiencing the same issue, I did some analysis a few days ago with everything going smoothly and yestarday it seems to not be able to read xlsx or csv, this is utterly dissapointing

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This issue persists—it works sometimes and fails at other times. What a disappointment! This service is utterly unreliable. ChatGPT team, we need a FIX.

Same issue, so frustrating !

Same problem here, please find a fix!!

I have found chat to be a ineffective AI tool for the simplest of tasks. Even if I provide all of the data it cannot create a spreadsheet consistently without major errors in its processing capabilities. Sorry to say that I will probably be cancelling my plus subscription and waiting for AI to become a little smarter

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Is this still the same now. Aug 2025

i’m dealing with this problem too. I made a GPT and tried to upload a pretty standard Excel file. It keeps saying i didn’t upload anything, but I did. Frustrating!

I am having the same problem as well

persisting issue. Using ChatGpt 5.2 (although this topic is tagged gpt.4, this appears to be the topic where everyone posts anyway)

Using gpt :slight_smile: to formulate a brief issue for the chatgpt developers:

Across multiple devices/locations, ChatGPT intermittently fails to read uploaded XLSX/CSV files (sometimes even claiming no file was received) after previously analyzing the exact same file in the same conversation, and starting a brand-new chat often temporarily restores file access—strongly suggesting a conversation/session state or tool-lifecycle bug rather than a file-format issue. Please acknowledge this as a tracked bug and fix it by stabilizing file handles across a conversation (including Projects and Custom GPTs) and surfacing clear, explicit errors when a backend/tool session expires, instead of silently “forgetting” uploads or forcing unreliable workarounds like PDF exports.