2375 Keyword list combiner

I need a desktop tool to batch combine keyword lists. (Could also be php if output files will be downloadable in one zip file from browser) I need it to create a new list with all combinations from two lists. Example 1: [login to view URL] contains: Cheap Discount Free [login to view URL] contains: books towels cars Output from these two lists will be named [login to view URL] and contain: cheap books cheap towels cheap cars discount books discount towels discount cars free books free towels free cars I need this done for multiple files in one run, so I should be able to browse my pc and add txt files to group 1 and group 2 and also add an output directory for the created files. Example 2: Group 1: [login to view URL] [login to view URL] Group 2: [login to view URL] [login to view URL] [login to view URL] Output from this will create the following files: [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] All these files will be built like example 1. I need a process bar so I can see how many % is done When I am browsing my pc to add files to group 1 or 2 I should be able to select multiple file instead of 1 at a time. I should also be able to remove files from the groups