Modify current JAR extension file

I have JAR file and i just need to edit few more codes in that. Very simple. The main core functions is there. Look the code. Can finish it within few minutes. It`s actually finding patterns from excel file. Previously, works for just excel file only. But what i want now is i want the code works for all file kind of either its in xls or csv i want it work for all which is from sheet. And also i want it works for all the cell in sheet. Previously, it works for "a","b"...so on... and i want it works for with or without ("') this symbol.I want all the files from the directory run and gets the output in the folder itself with same filename.xlsx. And i need to select the range from what range to what range i want to find the matching. You can view the script, it is in JAR file. All there. Just change my requirements. If it is in GUI file later then easy for me to browse the directory, select the range and all. Currently, i`m working on cmd to get the output. I have uploaded the file. From folder Test you can see the current output in xlsx file. PM me for any questions. Thanks.