Introducing TAV Interface
As others, Tav interface has the input and output windows that show you the TAV file (tav) and the mev files respectively. At the bottom there is a check box, Sort by Slide Row sand Slide Columns, which is defaulted checked. Unchecking it will keep the order of data items (spots) in the mev files as the same in the TAV files.

You may want to know: