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Excel Information Functions: Full List with Examples

By Rinkesh Shah, founder of Cellgrids.

Information functions check what a cell holds, such as blank, number, text or error. They are often wrapped inside IF to avoid errors. Open any function for its syntax, arguments, a worked example and a free practice spreadsheet.

FunctionWhat it does
ISBLANKChecks whether a cell is empty.
ISERRORChecks whether a value is any kind of error.
ISNUMBERChecks whether a value is a number.
ISTEXTChecks whether a value is text.
ISNAChecks whether a value is the #N/A error specifically.
ISEVENChecks whether a number is even.
ISODDChecks whether a number is odd.
ISFORMULAChecks whether a cell contains a formula.
ISREFChecks whether a value is a valid cell reference.
ISLOGICALChecks whether a value is TRUE or FALSE.
NConverts a value to a number — text becomes 0, dates become serial numbers.
SHEETReturns the sheet number of a reference.
SHEETSReturns the number of sheets in a reference.
ERROR.TYPEReturns a number matching a specific error type.
INFOReturns information about the current operating environment.
CELLReturns information about the formatting, location, or contents of a cell.
NAReturns the #N/A error value deliberately, often as a placeholder.

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Frequently asked questions

What are the main Excel Information functions?

Cellgrids lists 17 Excel Information functions. Popular ones include ISBLANK, ISERROR, ISNUMBER, ISTEXT, ISNA. Each has its own page with syntax, arguments and an example.

How can I practice Excel Information functions online?

Open the free live spreadsheet on Cellgrids, type the function in a cell and check your answer. No Excel install or sign-up is needed to start.

Which Excel Information function should a beginner learn first?

Start with ISBLANK. Checks whether a cell is empty.

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