A custom number format in Excel can have up to four different sections in the following order:
Positive format; Negative format; Zero format; Text format
You can specify different format codes for each section as long as they are separated by a semicolon.
So you can display a positive number in black, a negative number in red, a zero in green and any text in blue. See the gif below to see how this can be achieved.
The following table displays the different custom codes that you can enter in the Format Cells dialogue box and how the values will appear. You can download the Excel workbook below and press CTRL+1 in each cell to see the custom format entered.
|CODE||OUTPUT||HOW IT APPEARS|
|General||General format display||123456|
|#||Displays significant digits||123|
|$ – + / ( ) :||Displays this character||-$1234567890|
|\||Displays the next character following the \||#1234567890|
|“text”||Displays the text in between the quotations||1234567890 units|
|[Color n]||Displays the color in the Excel color pallete (from 0 to 56)||1234567890|
|[condition value]||Custom condition eg [If it meets this condition] True Format; False Format||1.00%|