---
title: e.tool | Rejoose Knowledge Base
description: e.tool
---

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1. [Rejoose Knowledge Base](https://rejoose.com/knowledge-base)
2. [e.tool](https://rejoose.com/knowledge-base/e-tool)

# e.tool

- [What is the difference between a seat, a user, and an admin in e.tool?](https://rejoose.com/knowledge-base/difference-between-a-seat-a-user-and-an-admin-in-e.tool)
- [How do I get a license to e.tool?](https://rejoose.com/knowledge-base/how-do-i-get-a-license-to-e.tool-)
- [Can I calculate before-and-after scenarios for my data centre?](https://rejoose.com/knowledge-base/can-you-calculate-before-and-after-scenarios-for-my-data-center-to-guide-investment-decisions)

## User guide

- [How to create a report in e.tool](https://rejoose.com/knowledge-base/how-to-create-a-report-in-e.tool)
- [How to change your unit preference in e.tool](https://rejoose.com/knowledge-base/how-to-change-your-unit-preference-in-e.tool)
- [How do I use category-average data when I have no part number?](https://rejoose.com/knowledge-base/how-do-i-use-category-average-data-when-i-have-no-part-number)
- [How do I change my report language?](https://rejoose.com/knowledge-base/how-do-i-change-my-report-language)
- [How to customise your report design in e.tool](https://rejoose.com/knowledge-base/can-i-customize-the-carbon-data-reports-with-my-companys-branding)

- [e.tool](https://rejoose.com/knowledge-base/e-tool#main-content)

    - [User guide](https://rejoose.com/knowledge-base/e-tool#user-guide)
- [e.voice](https://rejoose.com/knowledge-base/e-voice)
- [e.product](https://rejoose.com/knowledge-base/e-product#main-content)

    - [Getting started](https://rejoose.com/knowledge-base/e-product#getting-started)
- [e.voice circularity](https://rejoose.com/knowledge-base/e-voice-circularity)
- [e.hub & e.insights](https://rejoose.com/knowledge-base/e-hub-e-insights#main-content)

    - [User guide](https://rejoose.com/knowledge-base/e-hub-e-insights#user-guide)
- [API](https://rejoose.com/knowledge-base/api)
- [FAQ](https://rejoose.com/knowledge-base/faq#main-content)

    - [Partner FAQ](https://rejoose.com/knowledge-base/faq#partner-faq)
    - [End customer FAQ](https://rejoose.com/knowledge-base/faq#end-customer-faq)
    - [General](https://rejoose.com/knowledge-base/faq#general)
- [Videos](https://rejoose.com/knowledge-base/videos#main-content)

    - [e.insights](https://rejoose.com/knowledge-base/videos#e-insights)
    - [e.tool](https://rejoose.com/knowledge-base/videos#e-tool)

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