// For reading a AliROOT file into HLT format in memory, do the following:
//
// AliL3FileHandler file;
+// file.Init(slice,patch);
// file.SetAliInput("galice.root");
// AliL3DigitRowData *dataPt = (AliL3DigitRowData*)file.AliDigits2Memory(nrows,eventnr);
//
// For converting the data back, and writing it to a new AliROOT file do:
//
// AliL3FileHandler file;
+// file.Init(slice,patch);
// file.SetAliInput("galice.root");
// file.Init(slice,patch,NumberOfRowsInPatch);
// file.AliDigits2RootFile(dataPt,"new_galice.root");