How to rename a long list of photo filenames?

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M+-++\Josef Lowder
||.||MAlan Dayley
|M.||Deepak Saxena
||.|MAlex Dean
|M\|Kevin Brown
|M||Alan Dayley
M|||Bill Jonas
||M|Darrin Chandler
||.MDennis Kibbe
|MDeepak Saxena
|MAlan Dayley
M+\der.hans
|M|Ben Browning
||MBill Jonas
|MBill Jonas
MDragos Neagu