To resolve such issues:
- Make sure the Excel file's and Sheet name on the Excel connection or the
Simul8 command are written exactly as written on the Excel file you are
using.
- Avoid using punctuation signs and spaces for the Excel file's or the
Sheet's name
- Make sure you save the Excel file, and you are not in the middle of editing
something in Excel (e.g. a cell value or a macro).
If you are using Excel Connections, and this issue persists after following the last 2 tips, check "Clear Excel Number Formatting" under the Advanced tab of Excel Connections.