How to Format Numbers with Leading Zeros in Excel [Tutorial]

How to Format Numbers with Leading Zeros in Excel. Leading zeros are those pesky place-holding 0 digits at the beginning of a number. Unfortunately, when you enter such a value, Excel applies the General numeric format and tosses out the leading zero. Excel won't display or store the leading 0 digit (see the Formula bar). This tutorial will apply for Microsoft Excel 2021, 2019, 2013, and 2010 for both Windows (such as Dell, HP, Lenovo, Samsung, Toshiba, Acer, Asus) and macOS (MacBook Air, MacBook Pro, MacBook Mini) devices.