Syntax, a live wrap toggle, an interactive lookup playground, and a real-world error library: turn a #N/A into a clean result without silencing the bugs that matter. IFERROR vs IFNA, decided.
IFERROR evaluates a value; if it is any error, it returns your fallback instead. It is the clean way to turn a lookup miss into a readable result — wrap the lookup, keep the data honest.
Golden rule: verify the bare lookup returns correct values before wrapping. IFERROR catches all seven error types — it will happily hide a #REF! or a typo as a clean "Not found". Reach for IFNA when you only mean to handle a missing key.
We benchmarked exact-match lookups in HyperFormula 3.3.1 — median recalculation time across four table sizes. This is original measured data, not republished.
| Table rows | VLOOKUP (ms) | XLOOKUP (ms) | INDEX-MATCH (ms) |
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Exact-match lookups on a sorted table, full-column reference, median recalculation time across four table sizes. Every result was correctness-verified before timing. This is directly relevant to web spreadsheet tools and indicative, not identical to native Excel. Wrap freely: IFERROR adds negligible overhead to any lookup. Pick the fastest for your data (VLOOKUP here) and wrap it for clean output.
Text drafted with AI assistance and edited by LookupLab. Every benchmark number is machine-measured and reproducible, not generated. Data licensed CC BY 4.0.
Edit the cells, change the lookup key, switch functions and match modes. The result and the generated formula update instantly.
14 failure patterns mined from actual user reports on Reddit, Stack Overflow and Super User — each with the authentic symptom, root cause, a fix, and a runnable formula. Not textbook theory.
Availability and syntax differences across desktop Excel, Google Sheets, LibreOffice and the web spreadsheet engines — including the exact-match quirk we found in our benchmark.
| Platform | Support | Notes | Gotcha |
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Everything above is free. Go Pro for the deep end.