Hello,
Thanks for your interests in our product.
Kindly note that our Free Spire.XLS (
Free Spire.XLS for .NET Version:9.2) can be used for professional purposes. But it is limited to 5 sheets per workbook and 200 rows per sheet while reading or writing a .xls format file, and it has 3 pages limitations when converting an Excel file to a PDF file or a XPS file, you only can get the first 3 pages of generated file. Besides, it is also limited to the first 3 pages when printing. If there is any other question, welcome to write back.
Sincerely,
Lisa
E-iceblue support team