[Pharo-users] where is appendStream?

Hello, I use in Pharo 2.0  the class FileSystem to write in a text file(csv format).  I find only two options writeStream and readStream.  I would not like each time to overwrite the contents of my file and I do not find the option appendStream. How can I do? working := FileSystem disk workingDirectory. stream := (working / 'test.csv') writeStream stream nextPutAll: 'something'. stream nextPutAll: ';' . stream nextPutAll: 'other'. stream close. ------------------------------------ Hayatou