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ChatGPT users report CSV analysis failures

Users of OpenAI's ChatGPT are reporting an issue where the platform is failing to analyze CSV files. While attachments appear to upload successfully, the corresponding sandbox files are missing when the system attempts to read them. This problem is affecting files that previously worked, leading users to question if others are experiencing the same difficulty. AI

IMPACT Potential disruption to users relying on ChatGPT for data analysis tasks.

RANK_REASON User-reported issue with an existing product feature.

Read on r/OpenAI →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

ChatGPT users report CSV analysis failures

How we ranked this

Signal score
13 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
User-reported issue with an existing product feature.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
Breaking (< 6h)
Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

Full methodology in our editorial standards.

COVERAGE [1]

  1. r/OpenAI TIER_2 English(EN) · /u/VZarpa ·

    CSV files cannot be analyzed 01.09.2026

    <!-- SC_OFF --><div class="md"><p>I use ChatGPT to analyzed some information in csv files.<br /> It was working great until today.</p> <p>Now it says that attachments upload successfully and appear in the conversation, but the corresponding sandbox files are missing when reading …