Is there a way to ensure that Filemaker text formatting is maintained when exporting to .csv.

I have tried applying "uppercase" to a field in layout.

I have also tried to populated a field using "uppercase" as part of the script.

However, when exported to CSV, formatting is both upper and lower case.

Cancel that. Realised using "upper" function, rather than "uppercase" as a text style or text style function works.

 

Correct. CSV is a plain text format and any styling, whether applied to the field in Layout mode or to the text itself, is lost when exported.

OTOH, the Upper() function modifies the actual characters. Keep in mind that this is a one-way conversion. If the original text was able to distinguish between MacDonald and Macdonald, the result won't.