This function clears all .raw files from a fileset using COM scripting
Examples
if (FALSE) {
EVAppObj <- COMCreate('EchoviewCom.EvApplication')
EVFile <- EVOpenFile(EVAppObj,'~~/KAOS/KAOStemplate.EV')$EVFile
EVClearRawData(EVFile = EVFile, filesetName = '038-120-200')
}