Change sd2f sample rate

Download and install the latest version of Filestar.
Right click on one or more Sd2f file(s) on your desktop and select Convert with Filestar.
Type change sample rate in the search box.
Press Change.

What is .sd2f?

Name: Sound Designer II File
Extension: .sd2f
Format: Binary
Category: Audio
Developer: Avid Technology
Description: The Sound Designer II audio file stored with the .sd2f extension, which comes from the format's classic Mac OSType "Sd2f" and appears instead of .sd2 on files that have passed through Mac software. The format is the same Digidesign/Pro Tools big-endian PCM audio as .sd2.
MIME Type: audio/x-sd2
Sample: sample.sd2f
Wikipedia: .sd2f on Wikipedia