Microsoft Copilot Cowork expands the capabilities of Microsoft Copilot by allowing users to create and use Custom Skills. Instead of repeatedly writing the same prompts or manually performing routine tasks, Custom Skills let you package instructions, workflows, and business logic into reusable components that can be shared across individuals or teams. Whether you’re automating report generation, document reviews, customer support responses, or project management tasks, Custom Skills help standardize processes and improve productivity.

Custom Skills are especially valuable for organizations that rely on Microsoft 365 applications such as Teams, Outlook, Word, Excel, SharePoint, and OneDrive. Once created, a skill can be reused whenever needed, shared with colleagues, or imported into another Copilot Cowork environment, ensuring consistency across projects and departments.

In this guide, you’ll learn how to build, share, and import Custom Skills in Copilot Cowork, along with best practices for managing and maintaining your skills.

How to Build, Share, and Import Custom Skills in Copilot Cowork

Before you begin, make sure your Microsoft 365 subscription includes access to Copilot Cowork and its Custom Skills feature. Some organizations may also require administrator approval before users can create or share skills.

1. Open Copilot Cowork

The first step is to access the Copilot Cowork workspace.

1. Sign in to your Microsoft 365 account.
2. Open Microsoft Copilot.
3. Navigate to the Copilot Cowork workspace.
4. Verify that the Custom Skills feature is available.

Once you’re in the workspace, you can begin creating reusable skills.

2. Create a New Custom Skill

Start by creating a skill for a task you perform regularly.

1. Open the Custom Skills section.
2. Click Create New Skill.
3. Enter a descriptive name.
4. Add a brief description explaining the skill’s purpose.
5. Continue to the configuration page.

Choosing a clear name makes it easier for you and your team to locate the skill later.

3. Define the Skill Instructions

Every Custom Skill is powered by a set of instructions.

Include information such as:

• The task Copilot should perform
• Expected output format
• Writing style
• Business rules
• Required inputs
• Restrictions or exclusions

Well-defined instructions help produce consistent and reliable results.

4. Configure Input Parameters

Many skills require user input before they can run.

Examples include:

• Customer name
• Project title
• Date range
• Department
• Document location
• SharePoint site
• Excel workbook

Using parameters allows a single skill to work in multiple scenarios.

5. Test the Custom Skill

Before sharing the skill, verify that it works as expected.

1. Run the skill using sample data.
2. Review the generated output.
3. Check for formatting issues.
4. Update the instructions if necessary.
5. Test again.

Testing helps identify prompt or workflow issues before deployment.

6. Save and Publish the Skill

Once you’re satisfied with the results, publish the skill.

1. Click Save.
2. Review the configuration.
3. Select Publish.
4. Confirm the publication.

Publishing makes the skill available for future use.

7. Share the Skill with Others

Custom Skills can be shared across your organization.

1. Open the published skill.
2. Click Share.
3. Select individual users, groups, or your organization.
4. Configure the appropriate permissions.
5. Save the sharing settings.

Sharing reduces duplicated work and promotes standardized workflows.

8. Export a Custom Skill

Some environments allow skills to be exported for backup or distribution.

1. Open the skill.
2. Select Export.
3. Save the exported skill package.
4. Store it securely.

Exporting is useful for migration, backup, or transferring skills between environments.

9. Import a Custom Skill

Importing allows you to reuse skills created by others.

1. Open the Custom Skills section.
2. Click Import.
3. Browse for the exported skill package.
4. Upload the file.
5. Review the imported configuration.
6. Save the skill.

Imported skills can usually be customized to fit your organization’s requirements.

10. Update Existing Skills

Business processes evolve over time.

Review your skills periodically to:

• Improve prompts
• Add new functionality
• Update business rules
• Improve formatting
• Support new Microsoft 365 features

Regular updates ensure your skills remain accurate and useful.

11. Organize Your Skill Library

As your collection grows, organization becomes increasingly important.

Consider grouping skills by:

• Department
• Project
• Workflow
• Business process
• Document type
• Team

A well-organized library makes it easier to find and reuse skills.

12. Monitor Skill Performance

After deployment, monitor how your skills perform.

Review:

• User feedback
• Output quality
• Accuracy
• Usage frequency
• Required improvements

Continuous refinement helps maximize the value of your Custom Skills.

Conclusion

Custom Skills in Copilot Cowork provide an effective way to automate repetitive tasks, standardize business processes, and improve collaboration across Microsoft 365. By building reusable skills, sharing them with colleagues, and importing proven workflows, organizations can reduce manual effort while ensuring consistent, high-quality results.

Whether you’re creating document summaries, automating reports, drafting emails, or supporting internal business processes, Custom Skills make Copilot more efficient and adaptable to your organization’s needs. As your skill library grows, regularly reviewing, updating, and organizing your skills will help you maximize the long-term benefits of Copilot Cowork automation.