Auditing Error Handling

ISERROR vs. ISERR vs. ISNA: Building custom logic tests

When an Excel formula breaks, standard error-trapping functions help you catch the problem before it spoils…

The AGGREGATE Function: How to ignore errors in SUM/AVERAGE

When a standard Excel formula like SUM or AVERAGE encounters a single error in a data…

IFERROR vs. IFNA: When to be surgical with error catching

Spreadsheet designers frequently use error-handling functions to keep reporting dashboards clean and readable. However, using the…

Excel Error Handling and Auditing: The Complete Diagnostic Blueprint

Every complex Excel model will inevitably generate errors, whether from missing source data, mathematical anomalies, or…