To calculate work hours between two dates with a custom schedule, you can use a formula based on the WEEKDAY and SUMPRODUCT functions, with help from ROW, INDIRECT, and MID. In the example shown, the formula in F8 is...

To extract a word that contains specific text,you can use a formula based on several functions, including TRIM, LEFT, SUBSTITUTE, MID, MAX, and REPT. You can use this formula to extract things like email addresses, or...

Top convert a timestamp entered as text into a proper Excel time, you can use the MID function to extract components and the TIME function to assemble the time. In the example shown, the formula in F5 is:
=TIME(MID(B5...

To remove numeric characters from a text string, you can try this experimental formula based on the TEXTJOIN function, new in Excel 2016. In the example shown, the formula in C5 is:
=TEXTJOIN("",TRUE,IF(...

If you want to get the sheet name only (i.e. the sheet name without the file name or path) you can do so with rather long formula that uses the MID function along with the FIND function. The final result will look...

To convert text in an unrecognized date format to a proper Excel date, you can parse the text and assemble a proper date with a formula based on several functions: DATE, LEFT, MID, and RIGHT.
Note: Before you go the...

To abbreviate text that contains capital letters, you can try this array formula based on the TEXTJOIN function, which is new in Excel 2016. You can use this approach to create initials from names, or to create acronyms...

To generate basic outline numbering you can use a formula based several Excel functions, including COUNTA, IF, MID, FIND, and LEN. In the example shown, the formula in D5 is:
=COUNTA($B$5:B5)&"."&IF(...

To extract a substring with an Excel formula, you can use the MID function. In the example shown, the formula in E5 is:
=MID(B5,C5,D5-C5+1)
which, on row 5, returns "Perfect".
How this formula works
Note: in this...

To highlight numbers less than a certain value, including numbers entered as text like "

To translate letters in a string to numbers, you can use an array formula based on the TEXTJOIN and VLOOKUP functions, with a defined translatino table to provide the necessary lookups. In the example shown, the formula...

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 convert a measurement in feet and inches to inches only (i.e. 4'5" to 53) you can use a formula based on several functions, including LEFT, FIND, MID, and SUBSTITUTE. In the example shown, the formula in D5 is:
=...

To remove non-numeric characters from a text string, you can try this experimental formula based on the TEXTJOIN function, new in Excel 2016. In the example shown, the formula in C5 is:
{=TEXTJOIN("",TRUE,...

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...