Excel formula for totals

I'm trying to help a user get the totals of shirt sizes in an excel file.  They routinely come across this and would like to be able to enter in a formula that auto calculates the totals for the different shirt sizes.  I've attached a sample of what they are trying to accomplish.  There are some details listed below.  Thanks for any and all help.

We have 27 different people with varying shirt sizes. Ranging from Small to XL.  I need a formula that would auto calculate the shirt sizes then put them into the various corresponding cells for the shirt size totals for each size.
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AshokSr. Software EngineerCommented:

Christopher Jay WolffWiggle My Legs, OwnerCommented:
You should probably use the Countif function built into excel.  A good example is attached.

If I remember correctly from looking at your spreadsheet, the formulas in your totals will read something like...


and so forth.

Is that what you're looking for?

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cknodererAuthor Commented:
Thanks!  That's what I was looking for.
AshokSr. Software EngineerCommented:
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Microsoft Excel

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