The Excel spreadsheet must have tabs named with the following convention.
For example if stkname
is 'myFish', the Stock parameters are in a tab
named 'myFishStock', Fleet parameters in a tab named 'myFishFleet',
Observation parameters in a tab named 'myFishObs', and Implementation in 'myFishImp'.
All tabs (Stock, Fleet, Obs, and Imp) must be present for a single stock. You can have multiple
stocks in a single spreadsheet, provided that the stock names are different.