Excel: Unknown why saving the file not work as "請檢查您的拼字，或嘗試其他路徑。"

Unknown why saving the excel file did not work as "請檢查您的拼字，或嘗試其他路徑。"

Only and only the excel files in the folder occurred it.

Previously, colleagues didn't have this question.

Finally, solved it by moving all files to another folder.

Update