# Parabola vs. Excel

> Parabola vs. Excel: Excel is free and fine for something you'll run twice. Parabola adds scheduling, version history and an audit trail to the same model.

Source: https://parabola.io/parabola-vs/excel

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## TL;DR

Excel is the incumbent, and it deserves respect. Parabola is what a spreadsheet becomes when the process repeats.

- **Where Excel is right:** Ad hoc analysis, one-off models, anything you will run twice. Free and universal.
- **Where it strains:** The workbook that is rebuilt every month, emailed around, and quietly depended on.
- **What Parabola adds:** Scheduling, version history, run history, row-level data tracing, and an audit trail.
- **What stakeholders get:** An Artifact — a live interactive view instead of a tab that is stale the moment it is sent.
- **Bottom line:** Keep Excel for analysis. Move the recurring workbook to [Parabola](/).

## The recurring workbook is the problem

Most finance and operations automation projects are really about one spreadsheet. It pulls exports from two or three systems, applies rules that live in someone's head, produces a number the business acts on, and gets rebuilt every month by a person who has done it so many times they no longer notice how long it takes.

That workbook has three quiet costs. It consumes a skilled person's time on assembly rather than judgement. It is a single point of failure, because the logic is only fully understood by whoever maintains it. And when the number is questioned, reconstructing how it was produced means re-tracing formulas by hand.

## Parabola vs. Excel at a glance

| Dimension | Parabola | Excel |
| --- | --- | --- |
| Runs on a schedule | Yes, or on an event trigger like an inbound file or email | Someone opens it |
| Version and run history | Kept automatically | Whatever file naming you maintain |
| Explaining a figure | Row-level data tracing back through every step | Re-tracing formulas manually |
| Messy inputs | AI import steps extract from PDFs, emails, and inconsistent CSVs | Manual cleanup before you begin |
| Sharing the result | An Artifact: a live, interactive, branded view | A tab emailed round, stale on arrival |
| Cost and ubiquity | A platform you adopt | Free and already everywhere |

## Which one is right for the job

Use Excel for analysis, modelling, and anything you are doing once. Nothing here argues otherwise.

Move to [Parabola](/) when the same workbook comes round every week, someone else depends on the output, or the answer to how a number was produced needs to be better than opening the file and reading formulas.