Assembly files are growing in size by 10X when opened and saved in Solid Edge 2022.
Solution
The reason for the size increase is due to the new Assembly Preview mode introduced in Solid Edge 2022. This allows large assemblies to be opened quickly.
In Solid Edge Options, under General, you can disable "Store geometry in Assembly for preview".
Once disabled the file size will be reduced back to normal when saved. However, you will lose the quick open intended with Assembly Preview mode.
Notes and References
Hardware/Software Configuration
Platform: INTL64
OS: windows
OS Version: 1064
Product: SOLID_EDGE
Application: ASSEMBLY
Version: V222.0
Function: FILE
Ref: 001-10272338