Hi Josh,
Thank you for your interest in Syncfusion products.
We are not able to reproduce the mentioned issue “IndexOutOfRangeException while add rows to table” with our current version 10.1.0.44. For your reference please find the sample from the attachment.
Could you please provide us the following for further analysis on our side?
1. Your Syncfusion DocIO version information.
2. If you installed any patch related to Syncfusion DocIO then we need that patch id or related incident id.
Please let us know if you have any other questions.
Regards,
Ramkumar
Sample_43ef109.zip