1. What version of Excel, and, Windows are you using?
2. Are you using a PC or a Mac?
Here is a macro solution for you to consider. You can change the worksheet name, to open, in the macro.
Please TEST this FIRST in a COPY of your workbook (always make a backup copy before trying new code, you never know what you might lose).
1. Copy the below code, by highlighting the code and pressing the keys CTRL + C
2. Open your workbook
3. Press the keys ALT + F11 to open the Visual Basic Editor
4. And, paste the copied code into VBAProject, Microsoft Excel Objects, ThisWorkbook (on the right pane) by pressing the keys CTRL + V
5. Press the keys ALT + Q to exit the Editor, and return to Excel
Private Sub Workbook_Open()
' hiker95, 05/24/2015, ME856964
Sheets("Index").Activate '<-- you can change the sheet name here
Before you use the macro with Excel 2007 or newer, save your workbook, Save As, a macro enabled workbook with the file extension .xlsm, and, answer the "do you want to enable macros" question as "yes" or "OK" (depending on the button label for your version of Excel) the next time you open your workbook.
Before you save the macro, activate a different worksheet, and, then save the workbook.
Then close the workbook, and, then open the workbook again.