“Can’t Locate My Document on Nokia Lumia 530 “

I have Nokia Lumia 530, purchased recently and in good condition. I haven't added an external sd card to it and therefore I am forced to use the internal phone memory. I recently transferred some music and documents(both office word and pdf files) from my computer with the hope that I could gain access to them via Lumia 530 phone. However, I haven't managed to do so. All music are viewable on the Nokia lumia phone but I fail to locate the office word and pdf files. When I access my phone internal memory via the pc,it shows the files are there still but I am not yet able to browse them via phone. I had previously thought that I needed a file browser which I downloaded but this still couldn't solve the problem. How do I go about this? Please assist?
