Hi @hyf_grass
You can download the MCXE31B config tool data from the official website.
Snipaste_2026-03-17_17-31-56.png
After decompressing the folder, place the relevant files in the corresponding folder.
C:\ProgramData\NXP\mcu_data_25.06
Then you will successfully open the pin config in the MCUXpresso IDE.
Snipaste_2026-03-17_17-34-25.png
BR
Harry