Redmine

When importing a CSV file, file encoding is pre-selected according to general_csv_encoding in config/locales/*.yml. For example, "CP932" is selected by default when your language setting is Japanese.

I often use CSV files with UTF-8 encoding, but it's a bother to re-select UTF-8 in the encoding drop-down every time.

It would be nice if Redmine auto guesses the file encoding when importing a CSV file. Redmine already auto guess file encoding when displaying attached files or repository contents using Setting.repositories_encodings.