I am saving data to a file every 60 secs, I have it saving every 60 secs ok but it deletes the previous data added. Is there a way in which it would add to the file rather than overwrite it. And without using save dialog as it is done in the background.
Any feedback is greatly appreciated
It seems opening the File in Append mode will solve your problem.
http://msdn.microsoft.com/en-us/library/3zc0w663.aspx