Please solve in excel and share excel solver output and formulas. Chris Corry has a company$-$sponsored retirement plan at a major brokerage firm. He has the following funds available: His financial advisor has suggested that at most $40\%$ of the portfolio should be composed of high$-$risk funds. At least $25\%$ should be invested in bond funds, and at most $40\%$ can be invested in any single fund. At least six funds should be selected, and if a fund is selected, it should be funded with at least $5\%$ of the total contribution.

Develop and solve an integer optimization model to determine which funds should be selected and what percentage of his total investment should be allocated to each fund