bin2dec for numbers longer than 10 bits in excel - Stack Overflow

I have an excel with 28 position binary numbers. I need to convert them to decimal numbers, but function bin2dec don't work with numbers longer than 10 bits. Can anyone help me with this?

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excel- function with multiple variables - Mathematics Stack...

So I'm not good with excel (computers in general) and can do some things but this one is out of my league. This is the problem: The cost of a used car is highly correlated with the...

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Declaring variables in Excel Cells - Stack Overflow

Is it possible to declare variables in Excel cells and use them as parameters for formulas in other cells? For example I would declare var1=10 in one of the cells.