sort

Sort files in the folder t. The filename has the patter xxx.n.txt, where n is some numerical value. Also, exclude xxx.100.txt.

find ./t -name "xxx*.txt" ! -name "xxx.100.txt" -print0 | sort -z -t. -k2 -n | xargs -r0

# -z line delimiter is NUL, not new line
# -t filed separator
# -k sort via a key
# -n numeric sort

Convert 32-bit floating pcm to wave:

# sample rate: 22050
# c: channel
sox -t raw -r 22050 -b 32 -e floating-point -c 1 ./t.pcm ./t.wav