Collaborating on Excel workbooks with others allows you to work on the same spreadsheet simultaneously. This is a great way to improve teamwork and efficiency on shared projects. Here's how to achieve this using Microsoft's cloud storage service, OneDrive:

1. Upload the Workbook to OneDrive:

- Save your Excel workbook on OneDrive. You can either:
- If the workbook is new, directly save it to OneDrive by selecting "File" > "Save As" and choosing a OneDrive location.
- If the workbook is already saved locally, upload it to OneDrive using the "Share" functionality (explained in step 2).

2. Share the Workbook:

- With your workbook on OneDrive, open it in Excel.
- Click the "Share" button located in the top right corner.
- Enter the email addresses of the people you want to share the workbook with.
- Set permission levels:
- "Can edit" allows collaborators to make changes to the workbook.
- "Can view" restricts access to viewing only.
- Optionally, add a message for the recipients.
- Click "Send" to share the workbook.

3. Real-time Collaboration:

- Once your collaborators receive the invite and open the workbook (in Excel for the web or desktop app), they can work on it simultaneously.
- Colored highlights around cells indicate who is currently editing them.
- You can see changes made by others almost instantly.

Additional Points:

- For the best experience, it's recommended to use Excel for the web to collaborate.
- While collaborating, avoid editing the same cells simultaneously to prevent conflicts.
- You can also use Google Drive or other cloud storage platforms that offer similar collaboration features for Excel workbooks (functionality might differ).

By following these steps, you can effectively collaborate on your Excel workbooks with colleagues or teammates, streamlining your workflow and ensuring everyone is working on the latest version of the file.