#Embedded Excel file name shows URL-encoded characters instead of decoded UTF-8 text

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polar cometBOT
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Reported by @fallow rover

Bug Report: Embedded Excel file name shows URL-encoded characters instead of decoded UTF-8 text
`Steps to Reproduce`
  1. Ask ChatGPT to generate an Excel file with a Chinese filename.
  2. ChatGPT returns the file as an embedded spreadsheet preview inside the chat.
  3. Observe the filename displayed in the spreadsheet header.
`Expected Result`

The embedded spreadsheet preview should display the decoded UTF-8 filename.
Expected display:
教学日历_2026年3月2日-7月31日.xlsx
instead of the percent-encoded string.

`Actual Result`

The filename is displayed as URL-encoded text instead of decoded characters.
Example shown in the UI:
%E6%95%99%E5%AD%A6%E6%97%A5%E5%8E%86_2026%E5%B9%B4...
Instead of the correct readable filename:
教学日历_2026年3月2日-7月31日.xlsx
This makes the filename difficult to read and appears to be a missing URL decode step in the UI.

`Environment`

Chrome, ChatGPT-Web

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Additional Information

Please provide relevant details to help resolve the issue, such as:

  • ChatGPT Shared Link (if applicable).
  • Screenshots or videos demonstrating the problem.

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