1, insufficient memory: insufficient computer memory will lead to large data frames can not be written to the Excel file, it is recommended to close the other applications to free up memory space, or use a higher-configuration computer.
2, Excel version of the problem: Excel version of the older, will lead to large data frames can not be written to Excel files, it is recommended to upgrade to the latest version of Excel, or use other software that supports large data frames.
3, xlwings version problem: the use of an older version of xlwings, will lead to the inability to write big data frames to Excel files, it is recommended to upgrade to the latest version of xlwings, or use other libraries that support big data frames.
4, write mode problem: the use of a one-time write mode, will lead to large data frames can not be written to the Excel file, it is recommended to use the chunk write mode, will be divided into a number of large data frames into multiple small pieces one by one to write the Excel file.