account-financial-reporting/account_financial_report_horizontal/account_report.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>
        <!-- 
             the only reason for defining these entries is to include
             the rml files in the module's translations
        -->
        <report id="account_profit_loss_horizontal"
            string="Profit and Loss Horizontal"
            model="account.account"
            name="account.profit_horizontal"
            rml="account_financial_report_horizontal/report/account_profit_horizontal.rml"
            auto="False"
            menu="False"/>
        <report id="account_balance_sheet_horizontal"
            string="Balance Sheet Horizontal"
            model="account.account"
            name="account.balancesheet.horizontal"
            rml="account_financial_report_horizontal/report/account_balance_sheet_horizontal.rml"
            auto="False"
            menu="False"/>
    </data>
</openerp>