Dr Laser:
For example we have sequence of files with range from file00.bmp to file99.bmp. That sequencies are generated with many graphic and video software(Adobe Premiere etc.) If you want to start from file08 to file99 then select file08.bmp. Program will automatically look throgh all range of names untill next name will be omitted, then program stops.
I tested files with only one and two numbers (i.e. file0.bmp and file00.bmp), files with three and four numbers were not tested. If you will find a bug in batch then please report about it.