The computer page enters the switching area "Leshan Central District" in the upper left corner of Sichuan government service network. After collecting the information of the designated representative or entrusted agent, select "Change (Filing)". After the items that need to be changed (filed) are confirmed to be correct, click "OK" to confirm the changes and enter the application materials page, improve and preview the application materials, and then click "Submit Signature" to wait.

The above information is for reference only, and the specific process and required materials may be different due to local requirements. It is recommended to consult relevant departments or institutions for specific circumstances.