Hello,
Thanks for your inquiry.
Accorring to the message you provided, you are using an old version of Spire.Xls, and the latest version of Spire.Xls is
V13.2.4, please update to it and try again. If the issue still exists, to help us reproduce your issue and work out a solution for you, please offer the following message, thanks for your assistance in advance.
1) Your input excel file, you can attach here or send it to us via email (
[email protected]).
2) Your full test code that can reproduce your issue.
3) Application type, such as Console App, .NET Framework 4.8.
4) Your test environment, such as OS info (E.g. Windows 7, 64-bit) and region setting (E.g. China, Chinese).
Sincerely
Abel
E-iceblue support team