Dedicated to help teachers (university, school) in combining the grades through out the semester, where grades are on separated files, each file has a column of student ID or student name and the grade itself. A target file will be specified so all grades of all quizes & labs will be filled into it, those quizes & labs are on different files. Automatically it will merge the sub grades from their files into the target file. In 3 step it will do the job of 3 hours (when done manually) !