Excel, Google Drive, Google Sheets, Microsoft Office, VLOOKUP | Comments Off on Using VLOOKUP

XLOOKUP is a newer function that surpasses the awesomeness of VLOOKUP, but it’s only available in the Office 365 (Excel 2019) versions (and newer as they’re developed). There is still great value in VLOOKUP (and HLOOKUP as well), it just takes nesting more functions. Read the XLOOKUP post to learn more about it.

Manually eyeball a value

Imagine you’re judging some random contest. Participants earn different colored ribbons based on how many points they earn. You have a table that you use to know which color to award for a minimum number of points.

Look at the values in the table to the right. What color ribbon would you award someone earning 789 points? Yellow, right?

You looked in the Min column for 789 and see they earn a Yellow ribbon because they didn’t earn enough points to get the Red ribbon.

Plug this information into Excel

(FYI: you can replace Google Sheets anytime the word Excel is used) Plugging the information into Excel, it could look like the image below.

When you eyeball this, you look at what is in D2 and try to find that number in the range from A2:B6. You find the result in the first column, and see ribbon color in the second column. You manually type “Red” into cell E2.

Vlookup function

Excel can do this with the VLOOKUP function. (Think V, as in Vertical)
In order for Excel to know what your eyeball saw, you’ll provide information into the function using arguments.

The VLOOKUP function has three required arguments:

  1. lookup_value: What value to find
  2. table_array: Where that value and the results are found
            Excel knows to look for the lookup_value
            in the first (vertical) column of the table_array
  3. col_index_num: Which column in the table_array
    has the result
    [range_lookup]: The fourth argument is optional. Optional arguments are listed in brackets. You don’t need this argument for an approximate lookup

When you put it all together, it looks like this:


When using VLOOKUP to find an approximate value (as in this example), the first column of the table_array must be sorted in ascending order (smallest to largest) or it flat out doesn’t work.

It is therefore mandatory your table_array is sorted by the first column; in ascending order.

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