Slide Deck Builder
Turns your notes into a PowerPoint deck, or edits the slides you already have
by Anthropic
Spreadsheet Builder
by AnthropicSkillMake visuals
Builds Excel spreadsheets with working formulas, or cleans up the ones you have
The problem it solves
Your expenses sit in a messy export with merged cells and odd headers, and you need a clean sheet with totals by Friday.
For Small business ownersOffice workersPeople tracking budgets
- Before
- You clean rows by hand and type totals that go stale as soon as a number changes.
- After
- You describe the sheet and get an .xlsx with formulas that update and clean headers, recalculated and checked for formula errors before it comes back.
- Stars
- ★ 185k
- License
- Closed source
- Cost
- Free
- Level
- Beginner
- Contents
- Includes scripts
Overview
This is the skill Anthropic uses when Claude makes or edits spreadsheets. Describe the sheet you need or share a messy file, and Claude builds an .xlsx with formulas instead of fixed numbers, tidies rows and headers, or converts between CSV and Excel. It recalculates the file and checks it for formula errors before handing it back. It suits people who track budgets, sales or data in spreadsheets.
The sheet keeps live formulas, so it still updates when you change a number later.
Try these first
Start with the first one: it is a small task you can check easily.
- Make a budget sheet with five expense rows and a total row that uses a formula: [paste expenses]First try · creates a file
- Clean up this file: fix the headers, remove empty rows and keep one row per order: [attach file]creates a file
- Add a column that shows each month's change from the month before: [attach sheet]
- Turn this CSV into an Excel file with one tab per region: [attach CSV]creates a file
Example prompts written by Agent Flows Hub.
What you get
From the creator's documentation.
| Output | What it is | Reads |
|---|---|---|
| New sheets | An .xlsx built from your description or data | What you share |
| Live formulas | Totals and calculations as formulas, not fixed numbers | What you share |
| Clean-up | Fixes messy rows, headers and junk data | Files you share |
| Error check | Recalculates the file and fixes formula errors it finds | Files you share |
| Conversions | Moves data between CSV, TSV and Excel files | Files you share |
Good to know
Build a monthly budget sheet with totals that update themselves, or clean up a messy export before you share it. The skill tells Claude to use formulas, recalculate the file and fix any formula errors.
Limits
- It is source-available, not open source: its license allows use only through Anthropic's services under your Claude terms, so it is not meant to be copied into other agents.
- A sheet with no formula errors can still use the wrong cells. Check two or three totals by hand before you rely on the numbers.
Notes by Agent Flows Hub (original project name: xlsx (Anthropic skills)), written from the creator's documentation, not from running it ourselves. xlsx skill: SKILL.md (Anthropic) · Use skills in Claude (Claude Help Center)
Stuck setting it up?
Tell us what happened. We take a look first; if it needs paid work, you get an estimate before anything starts.
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