First of all there are two ways to use Vlookup, Either with exact match or range match. Range match is best used with the example of grading eg A=91-100%, B=81 -90% etc. If used properly there is not much issue. The major issue arises in exact Match. Here the spellings have to be exactly correct.
The Colorado Rockies are an American professional baseball team based in Denver, Colorado. The Rockies compete in Major League Baseball (MLB) as a member club of the National League (NL) West division. The team's home venue is Coors Field, located in the LoDo (Lower Downtown) area of Denver. The Rockies have won one National League championship (2007). The team mounted a rally in the last month of the 2007 regular season, winning 21 of their final 22 games, and reached the 2007 World Series.
Denver is in the center of the Front Range Urban Corridor, between the Rocky Mountains to the west and the High Plains to the east. Denver's topography consists of plains in the city center with hilly areas to the north, west and south. According to the United States Census Bureau the city has a total area of 155 square miles (401 km2), of which 153 square miles (396 km2) is land and 1.6 square miles (4.1 km2) (1.1%) is water.