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Create a Presentation From Excel or a Spreadsheet

Upload your Excel (.xlsx / .xls) or CSV file and get a structured presentation built from it — no retyping rows of numbers into slides by hand. The part that matters with data is accuracy: Gixo reads figures from your spreadsheet and keeps that source attached to the generation and review path. Verify source-critical numbers before presenting.

Create a Deck From Your Data Free See Gixo Lumen
Reviewed June 2026 Free 14-day trial · no credit card
Gixo Lumen outline creation screen for starting a presentation from structured notes
Starting from structured inputs gives Lumen the outline and sections it needs before deck generation.
.xlsx · .csv Upload your spreadsheet directly — Excel or CSV
0 Invented numbers — gaps get flagged, not guessed
8–28 Slides, sized to how much data you give it
Editable Export to editable PowerPoint when you're done

The short answer

You have the numbers in a spreadsheet — a metrics export, a budget, a results table — and you need them in a deck. The slow way is retyping each figure into slides, where a single fat-fingered digit becomes a wrong number in front of an audience. AI can do the conversion, but only if it carries your actual figures across rather than approximating them.

Gixo reads your spreadsheet directly: Excel workbooks are parsed cell-by-cell, and CSVs are read as rows and columns. When sources are provided, Lumen keeps uploaded and pasted material authoritative and lets the user choose uploaded-only generation or allow web context. Lumen records generation-time source provenance and keeps citations and source review attached; it does not automatically verify every claim, so human review remains required.

The result is a structured, editable deck you can refine and export — built from your real data, not a plausible-looking version of it.

How to turn a spreadsheet into a deck

1
Add your spreadsheet as a reference document

When you create a presentation, upload your Excel (.xlsx / .xls) or CSV file as a reference document (you can add a few related files too). Excel workbooks are read cell-by-cell; CSVs are read as their rows and columns.

2
Choose how the source should constrain generation

Keep generation uploaded-only when the sheet must be the sole source, or allow web context while keeping the spreadsheet authoritative.

3
Review the figures and missing context

When source material does not support a specific fact, Lumen instructs generation to omit it or use neutral, non-numeric wording. Reviewers should verify source-critical claims before presenting. Compare source-critical figures with the workbook before presenting.

4
Edit and export to PowerPoint

Tweak the deck in Lumen, then export it using the hybrid PowerPoint path. PowerPoint export is hybrid by design: stable layouts become editable text and shapes, complex slides preserve fidelity as images, and the file opens cleanly in PowerPoint.

Why this matters more for data than for anything else

A deck built from a topic can be vague and still be useful. A deck built from a spreadsheet can't — its whole reason to exist is the numbers, and a wrong one undermines the entire thing. That's why the conversion has to be faithful: the figure on the slide should be the figure in your cell, full stop.

Source provenance makes the review path visible, but it is not automatic claim verification. For a results review, board update, or investor deck, compare source-critical numbers with the workbook and correct the working deck before handoff.

Frequently asked questions

Can I turn an Excel file into a presentation?
Yes. Upload your .xlsx or .xls workbook as a reference document and Gixo reads it cell-by-cell for use during generation. Review source-critical figures against the workbook before presenting.
Does it work with CSV files too?
Yes. CSV files are supported — they're read as their rows and columns and used as the data behind your slides, the same way an Excel workbook is.
Will it change my numbers or make them up?
The spreadsheet stays authoritative, and you can explicitly choose uploaded-only generation when web context is not appropriate. Lumen records source provenance, but it does not automatically verify every generated claim, so review the numbers before presenting.
How many slides will I get?
The deck is sized to how much data you provide — a small table produces a short deck, a large dataset expands it. The length follows your source rather than padding to a fixed number.
Can I edit the deck and export it to PowerPoint?
You can refine every slide in Lumen. PowerPoint export is hybrid: stable layouts become editable text and shapes, while complex slides preserve fidelity as images. Forever Free output is watermarked; the 14-day trial includes clean export.

Turn your spreadsheet into a deck

Upload Excel or CSV and get a presentation built from your real figures — no retyping, no invented numbers. Free to create and preview.

Create a Deck From Your Data Free