Ciao Jonathan.
DownArrow is usually interpreted by the application, is not something the same in every program. Usually $TAB is used for columns separators and $CRLF for lines but this can vary a lot from application to application.
If you are able to identify how to setup text for your application to understand the down arrow, it is possible to arrange clipboard. Otherwise, as you stated, there can me other formats.
thinBasic for the moment has 2 functions working with clipboard: ClipBoard_GetText, ClipBoard_SetText. But we can try to develop some other if needed.
ANother option is to "drive" your application using SendKey but this a different approach.
If you can give us a little more info on the application, maybe someone here can help more. If your application is a spreadsheet, maybe it can read excel files, old format as BIFF one can be created by thinBasic. Sorry, I'm just gessing. Let us know.
Ciao and wellcome
Eros
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