excel-lookup-functions SKILL.md skillA
excel-lookup-functions from cxcscmu/skilllearnbench is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add cxcscmu/skilllearnbench/excel-lookup-functions@git:20260424.d50cf5aPins git:20260424.d50cf5a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- cxcscmu/skilllearnbench
- Path
skills/b1-one-shot-claude-haiku-4-5/weighted-gdp-calculation/excel-lookup-functions/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260424.d50cf5a, committed Apr 24, 2026
- Size
- 3,654 bytes
- Repository stars
- 91
- License
- MIT
Master Excel lookup functions (VLOOKUP, HLOOKUP, INDEX/MATCH, XLOOKUP) for single and multiple criteria.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Excel Lookup Functions
## Overview
Lookup functions allow you to find and retrieve data from tables based on criteria. Different functions suit different scenarios.
## Function Comparison
### VLOOKUP (Vertical Lookup)
Searches for a value in the first column of a range and returns a value in the same row from another column.
**Syntax:**
```
=VLOOKUP(lookup_value, table_array, col_index_num, [range_lookup])
```
**Limitations:**
- Can only search in the first column
- Lookup column must be to the left of return column
- Cannot handle multiple criteria easily
**Example:**
```
=VLOOKUP("Series_A", Data!A:D, 3, FALSE)
```
### HLOOKUP (Horizontal Lookup)
Searches for a value in the first row of a range and returns a value in the same column from another row.
**Syntax:**
```
=HLOOKUP(lookup_value, table_array, row_index_num, [range_lookup])
```
**Use Case:**
When data is organized horizontally with lookup values in the top row.
**Example:**
```
=HLOOKUP(2020, Data!A1:F10, 3, FALSE)
```
### INDEX & MATCH (Flexible Lookup)
INDEX returns a value from a specific position in a range. MATCH finds the position of a value.
**Syntax:**
```
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How to install
mdr add cxcscmu/skilllearnbench/excel-lookup-functions@sha256:cc8ac7851a6aaf78The line at the top of this page pins the label git:20260424.d50cf5a, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_ntb4kfu2chdmcxma)
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Versions
The registry has recorded 1 version of this file, committed on Apr 24, 2026.
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Source
cxcscmu/skilllearnbench · 91 stars · license MIT · pushed 2026-10-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_ntb4kfu2chdmcxma GET https://markdownregistry.com/api/v1/resolve?ref=cxcscmu/skilllearnbench/excel-lookup-functions GET https://markdownregistry.com/api/v1/blob/cc8ac7851a6aaf787633911d1468aac6b3805226012f66deba929f9938f62402
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