Function: ISLOGICAL

Function: ISLOGICAL

The Excel ISLOGICAL function is an Information formula that returns TRUE if the input is a logical value, and a FALSE result otherwise. As the name suggests, the formula asks the question “Is logical?” to the argument value. This formula can be especially...
Function: ISERROR

Function: ISERROR

The ISERROR Excel function is an Information formula that returns TRUE if the target value contains an error value, and FALSE if it does not. As the name suggests, the formula asks the question “Is error?” to its argument, and returns a Boolean result....
Function: ISERR

Function: ISERR

The ISERR Excel function is an Information formula that returns TRUE, if the reference value is an error code (except for #N/A), and FALSE otherwise. As the name suggests, the formula asks the “Is error?” question, and can be especially useful for...
Function: ISBLANK

Function: ISBLANK

The Excel ISBLANK function is an Information formula that returns TRUE if the reference cell is completely empty, and FALSE otherwise. As the name suggests, the formula asks the “Is X blank?” question to its argument. Although a cell must be completely...
Function: CONVERT

Function: CONVERT

The Excel CONVERT function is an Engineering function that converts a number between unit systems. You can convert feet into meters, pounds into kilograms, gallons into liters Fahrenheit into Celsius, and so on with this formula. In this guide, we’re going to show you...
Function: NETWORKDAYS.INTL

Function: NETWORKDAYS.INTL

The NETWORKDAYS.INTL is a Date & Time function that calculates and returns the number of business days between two given dates. The NETWORKDAYS.INTL function allows you to specify which days of the week are weekends and also use a list of holidays. In this guide,...
Function: NETWORKDAYS

Function: NETWORKDAYS

The Excel NETWORKDAYS function is a Date & Time formula that calculates the number of work days between dates. The function excludes weekends by default, and can also be set in a way to exclude a number of holidays. In this guide, we’re going to show you how to...
Function: DAYS360

Function: DAYS360

The DAYS360 function is a Date & Time formula that calculates and returns the number of days between two given dates, based on a 360-day year (12 x 30 days per month). 360-day year base is used in some accounting calculations which assumes that 1-year period is...
Function: WEEKNUM

Function: WEEKNUM

The WEEKNUM is a Date & Time function that finds the week number of a given date. WEEKNUM function returns an integer indicating the week index according to the specified return type. In this guide, we’re going to show you how to use the WEEKNUM function and also...