How to manage / restore Import Dialog (txt, csv) in Calc

Hello,
I try to open a txt file, and i have lost the dialog import where i can decide delimiters.
How to retrieve them?
Thanks
T
Version: 25.8.1.1 (X86_64) / LibreOffice Community | Flatpak

According to release notes:
“When the checkbox is unchecked, and the dialog is normally not shown, it is possible to show it (once), using a new Edit filter settings checkbox in the File Open dialog”

https://wiki.documentfoundation.org/ReleaseNotes/25.8

  1. Read the Release Notes.

  2. Open LibreOffice.

  3. FileOpen...

  4. Select file type: Text CSV

  5. Make sure that the Edit filter settings checkbox is checked:

  6. Select a CSV file, and click Open

  7. In the dialog that you were looking for, make sure that Always show on import checkbox is checked:

  8. Click OK