Re: Another raspberry pi question
The Raspberry Pi was designed to be an inexpensive learning computer for school kids. You could use it with Libre or Open Office suites (the Pi runs Linux so no MS Office) to create/edit Excel compatible spreadsheets but I think you would be disappointed in the performance since it has a very underpowered cpu and limited memory.
Once you buy the Pi you still need to provide a 5V power supply, SD card, mouse, keyboard and monitor. Although not totally necessary, you would probably also want a case for it. The OS doesn't come with the Pi, you'll need to download the OS and install it on your SD card. Depending on what else you need it to do, you may need a USB hub since the Pi has only 2 USB ports. My point is that unless you have all the stuff you need laying around, it will cost more than £30 to put a Pi in place.