Need a simple application.

Hello, I need a desktop software that will do the following: I have a text file with 10,000 lines I want to split them in new text files. I want to be able to select how many lines I want each text file to have, then I browse and select the text file and the software will create new text files for the lines. Example: I have 1 text file with 10 lines -------------------------------- line1 line2 line3 line4 line5 line6 line7 line8 line9 line10 ------------------------------- I open the software, put number 3, select the text file which contain lines above and click "divide them" The software will create 4 text files with lines like this: file1 ------------------------------- line1 line2 line3 ------------------------------- file2 ------------------------------- line4 line5 line6 ------------------------------- file3 ------------------------------- line7 line8 line9 ------------------------------ file4 ----------------------------- line10 ----------------------------- The output files will be in the same folder the original file is, after it process, it will not delete the original file, it will create new files name file1, file2, file3 etc. I hope its clear, this should be simple, looking for quick and cheapest bid. Thanks