First of all you have to enable bluetooth on the device you would like to send something to. On almost any computer you must have a bluetooth USB dongle, but on some laptops/notebooks/etc there are built in bluetooth connectivity.
If you want to send a file from your X1, there is a few clicks you have to do. I don't have the english version, so I don't know the exact names of the buttons.
Example: In the File manager you can either;
- highlight the file you want to send, press the menu at the bottom right, then press something like "Send wirelessly" and wait a few moments for the devices to be found by your X1
- "right click" (press and hold your finger/stylus on the file you want to send) and then send it. The usual "Send" only works by SMS, MMS or E-mail (for me).
I hope this is somewhat useful
