Hello - I am a new user, so please be kind. I am trying to write a small Android App to read a file stored on the external SD card, do some simple processing and then display a one-line result and store that in a summary file located in the same directory as the data file on the SD card. I have poured through the B4A documentation and see that there is a library called Files (Core) and it looks like where I should start. I looked in my B4A library list and it is not there. I searched the forum and found one reference to someone else with the same problem and they were told that it should have been installed when I installed B4A. It was not in my case. I did some more searching and was directed to ExternalStorage, which looks promising, but it specifically says that it will not run at Android versions less than 5. My device is 4.2.2. So, my questions are, Is Files(Core) available somewhere to add to my libraries and if so, is it supported by 4.2.2? Thanks.