can't get .txt extension on saved file

I can’t seem to get showSaveFileDialog() to append a .txt postfix to the filename. Even when I type it into the dialog box, it seems to strip it off. Without .txt, excel will not allow me to import the text file. What am I doing wrong??

Dim file As FolderItem file = FolderItem.ShowSaveFileDialog(MyFileType.text, "PressureLog-.txt") If file <> Nil Then output = TextOutputStream.Create(file)

Filetypes.

https://documentation.xojo.com/api/user_interface/desktop/savefiledialog.html

Thanks. I guess if I have more than one extension in the filetype.text then it doesn’t know what to append to the filename?

You really should only have one extension for types that you save.

http://documentation.xojo.com/api/files/filetype.html

[quote]Thanks. I guess if I have more than one extension in the filetype.text then it doesn’t know what to append to the filename?
[/quote]

Not a great idea.
In notepad, you will find it defaults to TXT as a file type.
You can select another filetype of ‘all files’ if you the user want to force an extension.

Without a filetyoe there is nothing to prevent your user adding .MOV or .PDF as the extension is there?