To count how many times a specific a word (or any substring) appears inside a range of cells, you can use a formula based on the SUBSTITUTE, LEN, and SUMPRODUCT functions. In the example shown, the formula in C11 is...

To extract the first name from a full name in "Last, First" format, you can use a formula that uses RIGHT, LEN and FIND functions. In the generic form of the formula (above), name is a full name in this format:
LAST,...

To find the longest string (name, word, etc.) in a column, you can use an array formula based on INDEX and MATCH, together with LEN and MAX. In the example shown, the formula in F6 is:
{=INDEX(names,MATCH(MAX(LEN(...

If you need to count the total characters in a cell, you can do so using the LEN function. In the generic form of the formula above, a1 represents a cell that contains text.
In the example, the formula in the active...

To pad text to an equal length using another character, you can use a formula based on the REPT and LEN functions. In the example shown, a formula is used to append a variable number of asterisks (*) to values in column...

To extract words that begin with a specific character, you can use a formula based on six functions: TRIM, LEFT, SUBSTITUTE, MID, LEN, and REPT. This approach is useful if you need to extract things like a Twitter user...

Note: Excel contains many built-in rules for highlighting values with conditional formatting, including a rule to highlight cells that end with specific text. However, if you want more flexibility, you can use your own...

To remove the first character in a cell, you can use the REPLACE function. In the example shown, the formula in D5 is:
=REPLACE(A1,1,1,"")
How this formula works
This formula uses the REPLACE function to...

If you need extract the last name from a full name, you can do so with this rather complex formula that uses several functions. In the generic form of the formula (above), name is a full name, with a space separating...

To split text at an arbitrary delimiter (comma, space, pipe, etc.) you can use a formula based on the TRIM, MID, SUBSTITUTE, REPT, and LEN functions. In the example shown, the formula in C5 is:
=TRIM(MID(SUBSTITUTE($...

To find the longest string in a range with criteria, you can use an array formula based on INDEX, MATCH, LEN and MAX. In the example shown, the formula in F6 is:
{=INDEX(names,MATCH(MAX(LEN(names)*(class=F5)),LEN(...

If you need to get the nth word in a text string (i.e. a sentence, phrase, or paragraph) you can so with a clever (and intimidating) formula that combines 5 Excel functions: TRIM, MID, SUBSTITUTE, REPT, and LEN.
How...

To split dimensions that like 100x50x25 into three separate parts, you can use some rather complicated formulas that use LEFT, MID, RIGHT, FIND, LEN, and SUBSTITUTE.
Note: you can also use Flash Fill in Excel 2013 and...

If you need to get the middle name from a full name, and you already have the first and last names in separate cells, you can use a formula that extracts the middle name using the MID and LEN functions, with help from...

T extract the domain from an email address, you can use a formula based on the RIGHT, LEN, and FIND functions. In the generic form above, email represents the email address you are working with. In the example shown,...