How to export Blocks Exchange XML from iTwin Capture
Add Geo-tagged Photos: Import your geo-tagged photos into iTwin Capture.
Export the Block: Right-click on the block and select Export > Export Block.
Select Output Format: Please change the output format to BlocksExchange XML instead of the default XMLZ format. Additionally, use the Rotation Matrix for the rotation format. iTwin will automatically select the appropriate spatial reference system for you.