Let's say you want to find text that begins with a standard company prefix, such as ID_ or EMP, and this text must be in uppercase letters. There are several ways to check if a cell contains text and the case of the text matters to you.
What do you want to do?
Compare one cell to another cell
To do this task, use the EXACT function.
Example
The example may be easier to understand if you copy it to a blank worksheet.
How to copy an example

Create a blank workbook or worksheet.

Select the example in the Help topic.
Note: Do not select the row or column headers.
Selecting an example from Help

Press CTRL+C.

In the worksheet, select cell A1, and press CTRL+V.

To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.


Note: EXACT is casesensitive but ignores formatting differences.
Function details
Compare one value to a list of values
To do this task, use the EXACT and OR functions.
Example
The example may be easier to understand if you copy it to a blank worksheet.
How to copy an example

Create a blank workbook or worksheet.

Select the example in the Help topic.
Note: Do not select the row or column headers.
Selecting an example from Help

Press CTRL+C.

In the worksheet, select cell A1, and press CTRL+V.

To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.


Note: The formula in the example must be entered as an array formula. After copying the example to a blank worksheet, select each formula cell individually. Press F2, and then press CTRL+SHIFT+ENTER. If the formula is not entered as an array formula, the error #VALUE! is returned.
Function details
Check if part of a cell matches specific text
To do this task, use the IF, FIND, and ISNUMBER functions.
Note: The FIND function is casesensitive.
Example
The example may be easier to understand if you copy it to a blank worksheet.
How to copy an example

Create a blank workbook or worksheet.

Select the example in the Help topic.
Note: Do not select the row or column headers.
Selecting an example from Help

Press CTRL+C.

In the worksheet, select cell A1, and press CTRL+V.

To switch between viewing the results and viewing the formulas that return the results, press CTRL+` (grave accent), or on the Formulas tab, in the Formula Auditing group, click the Show Formulas button.


The formula above uses the following arguments.
Formula to check for text
1. search_for: What you want to check for.
2. to_search: The cell that contains the text that you want to check.