.pup files are used for two unrelated purposes. The first type is used for installing software in Puppy Linux. This can be done just by double-clicking on them. The second type is used for installing updates on the PlayStation 3. these are supplied the PlayStation 3 system on a Flash drive or memory stick, by opening the Settings menu and selecting SYSTEM UPDATE.
In most programs you can press CTRL+O to open a file
Extract the files from the RAR, then create the PUP file from the extracted files.
It saves files in 'open document' format - they should be able to be read by most other similar programs.
ISO files are typically image files from DVD's or CD's. There are a few free programs floating on the internet that you can use to open them, I personally use Daemon Tools Lite.
There is list of programs that support DO file extension http://www.howopen.org/en/extensions/web-files/do
There are many programs that will open power point files. Perhaps the most widely known is Open Office, which also has the virtue of being open source and therefore free.
Yes they do. Open Office will read a multitude of files created on different software programs, including Microsoft Office.
Absolutely - I have both programs on my computer and Open Office will happily open MS Works files.
Some programs are designed to read special file formats and not others, for example Windows Media Player cannot open .ram (real audio media) files. Thus there are special programs to convert those files to .mp3 files so you can play on other programs
No. dll files are "Dynamic Link Libraries" and are used to store program code. They don't operate as stand alone programs but they are called by other programs.
Different programs can open certain files. To check which files you can open you will need to use the open file ability on your program and change the file type to all files. Please note this will not change or modify any files you have access to as the files have not been opened
PFC files are "Personal Filing Cabinet" files from AOL. AOL will open them, and I think a couple of other programs will as well, but I'm not sure which ones.