Say I have the following style of lines in a text file:
\"12\" \"34\" \"some text \"
\"56\" \"78\" \"some more text\"
.
.
.
etc.
I want
You could also create a macro (q) that deletes the quotes and then drops down to the next line. Then you can run it a bunch of times by telling vi how many times to execute it. So if you store the macro to say the letter m, then you can run 100@m and it will delete the quotes for 100 lines. For some more information on macros:
http://vim.wikia.com/wiki/Macros