Hi,
Thank you for posting your question in this community. From your description, when you and your colleagues open an Excel workbook on Network drive. the tab name of the same workbook is changed on one of your colleagues’ computer. I also did a
test to reproduce this scenario in Office clients Version 1912 Build 12325.20172 Monthly Channel Targeted. I created a .xlsx workbook and share it with my colleague on OneDrive. It seems okay from my side. The tab name for worksheet doesn’t be changed in Excel
application.
After that I went through the thread you shared with me, it seems that is occurred randomly on different devices in pervious. However, it is a thread from years ago, some of the information could be outdated.
To further narrow down this problem, may I know the following information at your convenience?
1: The screenshot of the Office version you and your colleagues using. You can go to File > Account > Under Product Information to find it.
2: Does this problem occur in all your existing Excel workbooks or the specific workbooks only? You can also try to create a new workbook and copy and paste data to the new workbook and see whether the problem still exists.
3: If the problem is happened in the specific workbook only, is there any unique things contain in this workbook, such as Marcos?
Best regards,
Dihao