Hi @Humble ,
Welcome to Q&A forum!
Please note that in newer versions of Excel, the Share Workbook button has been hidden. Please refer to the following steps to unhide it.
- Click File > Options > Quick Access Toolbar in Excel.
- Open the list under Choose commands from and select All Commands.
- Scroll down that list until you see Share Workbook (Legacy). Select that item and click Add.
For more information, please refer to:
About the shared workbook feature
What happened to shared workbooks?
Hope the information is helpful to you.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.