Go from a messy data file to slides you can stand behind

Give it a messy data file. Get clean, checked data, a written story and slides built from it.

Turn a messy spreadsheet into a clean slide deck is a free AI workflow for the job "Make documents, sheets and slides". It guides your AI through several skills in order, passing each step's output to the next.

Free · No account · Made by AI Blocks

What it does

Raw data is rarely ready to show. It has blanks, repeats, text that should be numbers and dates in three formats. Slides built on it carry the errors into the room, where they are hard to explain. The workflow cleans the file first, with the original kept safe. It then audits the clean copy and gives a quality score with a list of what is still weak, so you know which figures to trust. The story step names the point the data proves and orders it as context, problem, proof and next step, checking each figure against the cleaned file. The deck comes last, one point per slide with speaker notes. If the audit shows the data is too weak, fix it before you present.

You give it

The data file, as CSV or Excel
Who the audience is and what decision they must make
The format you will present in, such as PowerPoint (optional)
Notes on what the columns mean (optional)
A buyer brief (optional)

You get

A cleaned copy of the data, with the original kept
A quality score and a list of what is still weak
A written story with the point, the proof and the next step
A slide deck with speaker notes

Use it when

You have an export or survey file and a meeting to present it in.
The same file passes through several hands and no one trusts it.
You need slides fast but cannot afford a wrong number on one.

Steps

Data cleaner: Give it a messy dataset. Get missing values, duplicates, wrong types and outliers fixed.
Data quality auditor: Give it a dataset. Get a report on gaps, duplicates, odd values and the rules that would catch them.
Data story writer: Give it your numbers. Get a clear story with the point, the proof and the next step for your readers.
Presentation builder: Give it an outline or document. Get a polished slide deck for your audience in Marp, reveal.js or PPTX.

How to use it

Download the handoff pack. It's a zip with HANDOFF.md and every skill file this workflow uses.
Give the folder to Claude (in Claude Code, or as files in a Claude Project) and say "Follow HANDOFF.md".
Give it the file and keep a copy of the original.
Read the quality report before the story is written, and tell it which columns to trust.
Say who the audience is and what they must decide.