We found a small gap in Telerik's code, while defining name of Excel Sheet tab name (through Telerik Spreadsheet) --> using:

IWorksheetExporter CreateWorksheetExporter(string name);

of:

Telerik.Documents.SpreadsheetStreaming.IWorkbookExporter

When defining name of Excel sheet longer than 31 characters, Telerik code throws ArgumentException "Sheet name should be limited to 31 characters."

This is fine and correct - Excel sheet tab could be set UP TO 31 characters.

When using "shorter" name - like 30 characters, it works.

But when using exactly 31 characters, same Exception is thrown, which shouldn't be the case, as:
- Excel allows UP TO 31 charaters

- also you Exception message is clear that name should be limited TO 31 characters ;)

Best Regards,
Namyslaw Szymaniuk