There exists in GameMaker Studio 2 a number of functions that enable you to manipulate files in different ways:

• file_exists
  
• file_delete
  
• file_rename
  
• file_copy
  
• file_find_first
  
• file_find_next
  
• file_find_close
  
• file_attributes
  

The following functions can be used to change file names:

• filename_name
  
• filename_path
  
• filename_dir
  
• filename_drive
  
• filename_ext
  
• filename_change_ext
  

Finally there are some special functions for getting filenames that can be used for loading and saving files with file-type filters. These functions will open an explorer window, and therefor cause the game to lose focus. This means that any input the game is depending on may not be correctly registered, and as such we recommend that (if using these functions in a keyboard event) you use the key up event and not the pressed or down events.

• get_open_filename
  
• get_open_filename_ext
  
• get_save_filename
  
• get_save_filename_ext