Convert x3f to psd Online: x3f2psd
You can use Tom's Editor to easily convert images from
Sigma Camera RAW Picture File .X3F to Adobe Photoshop
Tom's Editor is a free, online image manipulation and converter program.
Go to Tom's Editor
Sigma Camera RAW Picture File is an image format with extension X3F.
PSD is in internal image format of Adobe Photoshop. It can store all the features offered by Photoshop, like layers and paths. Images can be compressed or not.