Navigating around tables in Word 2007 is easy. You may move from cell to cell by using the tab key. You may want to apply formatting changes to one or more cells. To choose a particular table cell, simply move your mouse to it and click on the cell. Word will highlight it and insert your cursor. You may select multiple adjacent cells in a table by clicking and dragging the mouse over the tables you want to select.
Also, how long is your investment horizon? Is it really that important to you to project out to 30 years or is 3λ years sufficient along with a terminal value that represents the expected NPV beyond 5 years? Usually this latter approach works best and looks the most credible to potential investors. There are numerous ways to calculate terminal value including multiples, current market values projected forward, and round guesstimates. Obviously these decisions are affected by your personal preference and the type of investment for which you're calculating present value.