I'm working on a project where respondents may enter usernames, social media handles, or other text containing Unicode symbols and decorative characters.I know LimeSurvey supports UTF-8, but I'm curious about real-world behavior when exporting responses to Excel (.xlsx or .csv).For example:

• Do stylized Unicode characters remain intact after export?
• Are there any character types that tend to break or display incorrectly in Excel?
• Has anyone noticed differences between Excel, Google Sheets, and LibreOffice?
• Are there any recommended test cases for validating Unicode compatibility?

I generated a few sample strings using a Unicode text generator ([url] letrasbonitas.com.es [/url]) and some of them contain characters from Mathematical Alphanumeric Symbols and other Unicode blocks. Before running large-scale tests, I'd like to hear if anyone has already experimented with this in production surveys.Any experiences or recommendations would be appreciated.