To update your Primary Target Tracker file names it is simply a case of renaming each file to reflect the new academic year.

Open the folder where you keep your PTT files

Start with the oldest children e.g. your Year 6 file, right mouse click on the file name and select Rename

The file name will be highlighted and you can then overtype it with a new name e.g. 0304_Yr7 or 2010_Leavers

Do the same with each file in turn working downwards to the youngest year group

If you use the Target Tracker file naming convention e.g. 0910Yr1, (0910 being their Reception year) you will only need to update the last number in the filename each year, as the Reception year always remains the same, and eventually your file called 0910Yr1 will be your 0910Yr6 file.