I am evaluating version 22.214.171.124 and have noticed that the Aspose.Cells and MS Excel load and save speed increases dramatically as rows increase to 45 thousand and above. The time jumps from around 4 seconds for 10 thousand rows to over a minute for 45 thousand rows. A linear progression would have expected 20 seconds max, but it's three times that.
I'm working with chotz, who has posted previously with questions about the fastest way possible to load and save data. You have said the code we are using fine.
Do you have any ideas on what could cause the dramatic slow down at that particular row count?
I have attached the spreadseet of the test.