It is not possible to have more than one person working on the same version of a spreadsheet at the same time.

Question

Quizplus · Accepted Answer

It is possible to have multiple people working on the same version of a spreadsheet at the same time in certain productivity tools such as Google Sheets or Microsoft Excel Online, which allow for real-time collaboration. However, in traditional desktop versions of Excel, only one person can edit the document at a time.

It Is Not Possible to Have More Than One Person