Gnucash file is getting long!

[JOHN OGDEN]

I have been using GnuCash for over four years, and the file is becoming quite large.I have searched the documentation but have failed to find any instructions for separating the GnuCash accounts file (for all accounts) so that I end up with two files, one for 'old' transactions and one for 'new' transactions. I assume this to be a standard 'end-of-accounting-period' action: where do I find it documented? John
Revd Dr John Ogden 0118 969 6319 07746 621447