In this paper, a study on the mass conversion of file names under various conditions that has been raised as a difficult problem in the use of computers is described. This method can deal with the problem of converting filenames that cannot be solved with conventional methods in the fastest time possible. This method consists of three main steps. That is, it consists of the process of obtaining the file name, the process of converting the file name according to the required request using the file name conversion formula in EXCEL, and the process of finally converting the file using the converted file name according to the conversion formula. This method is much easier than the previously described conversion method and has the advantage that it can be operated without error on any computer, providing a new premise in future research for data processing in computers.