# Tags: IF

Assume some names are entered in column A.  The names can be only First name, First name and Middle name or First name, Middle name and Surname.  You may refer to my formula in this workbook.

Given a sentence which has an e-mail address positioned anywhere i.e. beginning, middle or in the end, one may want to extract only the e-mail address from the string.

You may refer to my formula based solution in this workbook.

Assume a two column database with names in column A and numbers in column B.  Names in column A may be repeated.  If a user types a certain name in a cell, a formula should sum the highest three values from column B for that name.

Depending upon the version of MS Excel which you are using, there could be two ways to solve this problem

Solution for MS Excel 2010 and higher versions

If you are using the PowerPivot add-in, then a simple DAX formula can solve this problem.

Solution for all versions of MS Excel

While this solution works for all versions of MS Excel, it uses an array formula (Ctrl+Shift+Enter).  Array formulas, if used extensively in the workbook, adversely effect the system's performance.

You may refer to my solution in this workbook.

There is a three column database with month in column A, numbers in column B and names in column C.  I want to count unique numbers in column B for a specific month and name provided by the end user.

Depending upon the version of MS Excel which you are using, there could be two ways to solve this problem

Solution for MS Excel 2010 and higher versions

If you are using the PowerPivot add-in, then a simple DAX formula can solve this problem.

Solution for all versions of MS Excel

While this solution works for all versions of MS Excel, it uses an array formula (Ctrl+Shift+Enter).  Array formulas, if used extensively in the workbook, adversely effect the system's performance.

You may refer to both solutions in this workbook.

To count unique values with conditions on large databases, you may refer to the following link

In a list with multiple occurrences, the VLOOKUP() function in Excel will only return the first occurrence of the string being searched.

Depending upon the version of MS Excel which you are using, there could be two ways to solve this problem

Solution for MS Excel 2010 and higher versions

If you are using the Power Query add-in, then a few simple steps (no formulas at all) can solve this problem.  The result will be dynamic and refreshable (just as in a Pivot Table)

You may watch a short video of my solution here

Solution for all versions of MS Excel

While this solution works for all versions of MS Excel, it uses an array formula (Ctrl+Shift+Enter).  Array formulas, if used extensively in the workbook, adversely effect the system's performance.

I  have presented three cases in the this workbook.

You may refer to my explanation of the array formula here.