I have drawn some stuff up in Mastercam and I am starting to change

I have drawn some stuff up in Mastercam and I am starting to change a post to get a G code output to run on laserweb3
All fine for lines but arcs and circles are output G02 and G03 with I J incremental to arc centre.
File loads OK but it does huge arcs.
Runs ok on my back plotter I cannot find any info on how the G02/g03 should be formatted.
I have sample file if you want to look.