FAQ
Maximum Size of GEDCOM File which case be used

Augean runs on Microsofts 64 bit OpenJDK Server
This makes efficient use of memory on your desktop computer.
The max size of files is determined by the physical memory on your computer.
Please run Help ⟶ About Memory Test

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Based on the physical memory in the system, I try to work out the maximum size of GEDCOM supported, in this case 1GB