Hi there,
Thank you for contacting us.
You purchased the software on February 27, 2017. The 2-year free upgrade support period expired on February 27, 2019. However, you can still use the older versions of the software that were available during your 2-year free upgrade support period.
The license for our software is a lifetime license that includes 2 years of free update support. After the 2-year free update support period, you will not be able to update to any new versions of the software, but you can continue to use the older versions.
Before the expiration of the 2-year free upgrade support, the link provided below is for the latest version that you are eligible to download and install:
https://download.extendoffice.com/downloads/History-Kutools-for-Excel/18.00--83hWRP9p9rQ7QT9LSHofsgk/KutoolsforExcelSetup.exe Should you wish to obtain the most current version of Kutools, acquiring a new license is required.
If you have any questions or suggestions, please do not hesitate to contact me.
Amanda