Excel losing drop downs after file gets roughly over 11,000 rows

When generating an excel sheet, after the number of rows reaches around 11,000, we get an error message when opening the file and while the data is in the file, the drop downs are no longer available. No issues with many files below 11,000 rows.

error message:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>

error156760_01.xml

Errors were detected in file 'C:\Users\Mike\AppData\Local\Temp\notesC7A056~6890679.xlsx’Repaired Part: /xl/worksheets/sheet2.xml part.

@LarryReynoldsHabeggercorp,

Could you please share a standalone sample console application or runnable sample code to reproduce the issue on our end. Also, share your template file(s). We will check your issue soon.

PS. please zip the sample files and application prior attaching.