Need to sum from a lookup date until today

Microsoft Microsoft excel 2007 full vers...
December 6, 2010 at 01:21:57
Specs: Windows XP
Col A has dates over last years. The rest of the table has production results from various machines on each day since. Each day a new row of production tonnages added. I would like to have a formula to add the tonnages produced from a given date, 3/8/2009 until today =today()
Cannot change the existing basic data table!

date tonnage Mach 1 tonnage Mach 2 tonnage Mach 3
and so on....

I hope you can help me, breaking my brain.

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December 6, 2010 at 05:35:37
Please read the How To referenced in my signature line and repost your data in columns to make it easier for us to read.

Include some example numbers and the expected result so that we don't waste time trying to guess at what your data looks like. Keep in mind that we can't see your spreadsheet from where we're sitting.

That will save all of us some time and energy.

Posting Tip: Before posting Data or VBA Code, read this How-To.

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