If you see You can't change part of an array error while trying to use the Sort, Delete, Edit, or some other feature in Microsoft Excel, see this post.

Probably, the fastest possible and the most efficient parser for XLS excel files for PHP! Note: this parser works only with older XLS files that were used in Microsoft Excel 95 (BIFF5) and 97-2003 ...

PHP XLS Excel Parser Probably, the fastest possible and the most efficient parser for XLS excel files for PHP! Note: this parser works only with older XLS files that were used in Microsoft Excel 95 ...

To check if a value exists in an array, we can loop through its elements. However there is another solution! You can use the INDEX () function, native to Excel and in the case of two-dimensional ...

Example: I have a 5 x 5 array of data with names of animals in it. I have another cell with "monkey" written in it. Is there a way I can write a formula to test whether or not "monkey" exists in ...

Excel doesn't have a built-in AVERAGEIF() function, but you can still average values, conditionally.