saving buffer data > 1.

I know from an old thread (I did my research!) that it is possible to
store values less than -1. or greater than 1. in a buffer to use it
as an all-purpose floating-point table. I have no problem using
peek~ to get data in, but once I save it, they all clip to -1. 1. I
have tried all of the formats available, and none of them will store
these higher values. I can't see a way to get it to save except as a
soundfile, & I presume it can't read a non-soundfile anyway.

So the $64 question is: how can I store a buffer with values above
1.? Don't tell me to use a jitter matrix -- for long-winded reasons,
I'd prefer to have the interpolation facilities of audo-rate lookup....

thanks,

M