BUG: ExcelWriter with mode='a' corrupts file

BUG: ExcelWriter with mode='a' corrupts file: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). Note : Please read this guide (https://matthewrocklin.com/blog/work/2018/02/28/minimal-bug-reports) detailing how to provide the necessary information for us to reproduce…