Restore data

Due to some stupid mistake I changed my external drives partition from apfs to exfat through the Powershell and data on it is not available. Is it possible to get it fully back? Didn’t save a new data on it since then and any software I tried can find around 100gb (movies only) which is about 5% of that I lost (need my books and hi-res music, movies are safe at my accounts) Also, if I turn it back to apfs, it will wipe data fully?