How to Use Copilot in Word to Generate Microsoft Editor Style Guides

You want to create a consistent writing style for your documents in Microsoft Word. Manually setting up Microsoft Editor preferences for each team member is time-consuming and error-prone. Copilot in Word can generate a custom style guide based on your existing documents or specific rules, which Microsoft Editor then enforces automatically. This article explains how to use Copilot to build that style guide and apply it across your organization.

How Copilot and Microsoft Editor Work Together for Style Guides

Microsoft Editor is a proofing tool in Word that checks spelling, grammar, and clarity. It also supports custom style rules for organizations that need to enforce brand voice, industry terminology, or formatting conventions. Copilot in Word can analyze your existing documents or follow your instructions to produce a structured style guide document. That guide then becomes the source for Editor’s custom rules. This approach saves hours of manual configuration and ensures every team member uses the same standards.

Prerequisites: You need a Microsoft 365 subscription that includes Copilot for Microsoft 365. Your tenant administrator must enable Copilot in Word. You also need access to the Microsoft Editor pane under Home > Editor. If you plan to share the style guide with others, your organization should use Microsoft 365 Business Standard or above to support custom Editor policies.

Steps to Generate a Style Guide Using Copilot in Word

1. Open the Copilot pane in Word
   Launch Microsoft Word and open a blank document or an existing document you want to use as a sample. Click the Copilot icon on the Home tab to open the Copilot pane on the right side of the window.
2. Write a prompt to create a style guide
   In the Copilot chat box, type a prompt such as “Create a style guide for our company documents. Include rules for spelling, grammar, tone, and formatting.” You can also reference an open document by typing “Create a style guide from this document.” Copilot analyzes the text and generates a draft guide.
3. Review and refine the generated guide
   Copilot inserts the style guide as a new document. Review each section: general rules, preferred spellings, tone guidelines, and formatting instructions. Ask Copilot to add or remove rules by typing “Add a rule to avoid passive voice” or “Remove the rule about Oxford commas.”
4. Copy the rules into Microsoft Editor custom settings
   Open the document that contains your finalized style guide. Go to Home > Editor. Click the three-dot menu in the Editor pane and select Settings. Under Style, choose Custom. Paste your grammar and tone rules into the appropriate fields. For spelling exceptions, add words to the custom dictionary.
5. Test the style guide in a new document
   Create a test document and intentionally include violations of your style rules. For example, write a sentence that uses passive voice if your guide prohibits it. Click Editor to see if the rule is flagged. Adjust the custom settings until the behavior matches your guide.

Alternative Method: Generate a Style Guide from a Sample Document

1. Open a representative document
   Open a document that already follows your desired style. This could be a past report, a marketing brochure, or a legal template.
2. Prompt Copilot to extract the style
   In the Copilot pane, type “Analyze this document and create a style guide that captures its grammar, tone, and formatting rules.” Copilot examines the document and produces a guide that matches the patterns it detects.
3. Edit the extracted rules
   Copilot may include rules you do not want. Delete or modify them by typing “Remove the rule about using bullet points” or “Change the tone rule from formal to neutral.”
4. Apply the rules to Editor
   Follow the same process from the main steps: copy the rules into Editor custom settings and test them.

If Copilot Generates Incomplete or Incorrect Style Rules

Copilot misses a critical rule from your sample document

Copilot may not detect every rule that is implicit in your sample. For example, it might miss that all headings must use title case. Solution: After generating the guide, manually add the missing rule by typing “Add a rule that all headings must use title case.” Then update the Editor custom settings accordingly.

Editor does not enforce a rule from the generated guide

Not all rules that Copilot writes can be enforced by Editor. Editor supports grammar, spelling, and clarity rules but cannot enforce layout or image placement. Solution: Review the generated guide and separate rules into two categories: those Editor can check and those that require manual review. Keep only the enforceable rules in Editor settings.

The style guide is too long for Editor custom settings

Editor custom settings have character limits per rule field. If your guide is extensive, Copilot may produce more text than Editor can accept. Solution: Summarize the key rules into concise statements. Use bullet points rather than full paragraphs. For spelling exceptions, add only the most frequent terms to the custom dictionary.

Copilot-Generated Style Guide vs Manual Editor Setup: Comparison

Item	Copilot-Generated Guide	Manual Editor Setup
Time required	5-10 minutes to generate and refine	30-60 minutes to configure each rule individually
Accuracy of rules	Depends on prompt quality and sample document	High, because you define each rule explicitly
Custom dictionary entries	Copilot extracts from sample text	You add each term manually
Reusability	Guide can be saved as a document and reused	Settings are tied to your Microsoft 365 account
Enforcement in Editor	Requires manual copy-paste of rules	Directly configured in Editor

You can now generate a style guide with Copilot in Word and apply it through Microsoft Editor. Start by opening a sample document or a blank file, then write a clear prompt in the Copilot pane. Refine the generated rules and copy them into Editor custom settings. For best results, keep the guide concise and test each rule in a separate document. If your organization uses Microsoft 365 Business Standard or above, consider sharing the Editor settings via Group Policy for consistent enforcement across all users.