I have a mac too If you're using system X sharing excel docs should be no problem, provided that you have MS Office.
Otherwise you can use nutritiondata.com (web page) which will let you create recipes by adding all the ingredients and then will do all the nutrition anaysis for ya. Click on 'pantry' at the top of the page and add in all the ingredients you need then create your recipe by adding in the amounts. It takes a bit of time but it gives you tonnns of info about the recipe at the end of it.
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Re: Nutritional Analysis Calculator-Rachel
If you're using system X sharing excel docs should be no problem, provided that you have MS Office. 
