Summing between 2 dates

flying linus

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In the attached spreadsheet, I want to find the total resource loading for a particular day. Each task has a start and end date and I want to find to sum of all tasks that fall within that date. I don't even know where to start with a formula...
 

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I am confused, you have values in column D & E that look like the total in that date range, then below you have Resource A & B on a daily basis. There is no way you could possibly take the values from Tasks above and break them out?

I thought you would have the daily values filled in and then sum up based on the start/ finish date (assuming you had numeric values in the range B7 to C642)....I made this formula for that purpose....

=SUMPRODUCT(--(A7:A642>=$B$2),--(A7:A642<=$C$2),B7:B642)

Please clarify
 
Trying to clarify:

Tasks have a start and end date. Two resources are required to support that task. The resource value is in percentage required of the total resource required by the task. For instance, Resource A is a conference room and 100% utilization means they are using that room for 100% of the available time for that day or range of days. Resource B could be a effort expected by a particular team, with 100% being the amount of time the team spends on that task during the duration of the task. Tasks durations will overlap wrt to start and finish dates, and utilize a portion of the available resources.

For a particular day on the calendar, I want to see the total utilization of the resources by looking at all the tasks that have fall within that particular date. If any are above 100%, then we have to modify the task and/or resource loading to get it below 100%. Essentually, we have all the data in MS Project, but many are scared to death by MS Project and want to see a nice, date dependant resource loading chart. Rows 1 through 4 are a sample of what the raw MS Project export would look like.
 
Ok I think I got it, I was going to tell you to get Project until I read the last sentence :)

Before I try to figure it out, I attached what I understand is what you want, please confirm ( I added the colored columns for my reference).
 

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Yes, that is what I am trying to do. I can't seem to figure out a formula that will give me the same result...thanks in advance for your help.
 
I'll look at it tonight, always up for a challenge :)
 

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