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Dealing with .csv files in Cocoa – writing an importer

Mac users who need to deal with large amounts of data might justifiably feel like they got the short end of the stick as far as Microsoft Office is concerned. The Mac version of Excel doesn’t support Visual Basic and isn’t multithreaded, meaning that:

a) as soon as you get above a couple of tens of thousands of rows, any formula more complicated than summing a column freezes the UI for a couple of minutes while it crunches the numbers, and

b) any data analysis you want to do which involves iteration results in formulae consisting of ten lines of densely nested brackets, which are nearly impossible to read or debug.

Like any bad programmer, I implicitly believe that my language of choice is the perfect tool for any job, and hence when recently confronted with a very large stack of data I needed to analyse I decided it would be easiest to Object Oriented the hell out of it with a small custom C application.

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