There are three common methods to extract the unique value of a column in Excel. ① Use the "Delete Duplicate" function: select the data column, click "Data" → "Delete Duplicate" to directly delete the duplicate row, but the original data will be modified; ② Use "Advanced Filter": Select the data area, enter "Data" → "Advanced", check "Select non-duplicate records", copy the unique value to the new location, and do not change the original data; ③ Use the formula method: If Excel supports the UNIQUE function, enter =UNIQUE(A:A) to dynamically generate a unique value list. The old version can be implemented in combination with INDEX, MATCH and COUNTIF. Selecting the appropriate method can effectively improve processing efficiency based on whether dynamic updates are required and whether modifications to the original data are allowed.

There are actually several simple and effective ways to extract Unique Values of a column in Excel. No complex formulas or plug-ins are needed, mastering one of them can complete tasks quickly.

Use the Delete Duplicates feature

This is the most intuitive way to suit the situation where only a unique value is needed to be extracted at once.

Operation steps:

• Select the data column you want to process (including the title can also be selected)
• Click "Data" on the menu bar
• Find "Delete Duplicates" in the "Data Tools" group
• Confirm that you want to check the duplicate columns in the pop-up window, click OK

Note: This method will operate directly on the original data and delete duplicate lines. If you don't want to change the original data, you can copy it before operating.

Extract unique values using Advanced Filter

This method can output the unique value to another location without changing the original data.

Operation steps:

• Select your data area
• Click on the "Data" tab
• Click the "Advanced" button (usually in the "Sort and Filter" group)
• Select "Copy filter results to another location" in the pop-up window
• Check "Select non-duplicate records"
• Set the location of the source data area and output area, and click OK

This method is suitable for when you need to keep the original data structure and want to organize the unique values into a new list.

Extract unique values using formula method (for dynamic updates)

If you want to automatically update the unique value list after each data change, you can use the UNIQUE function (for Excel 365 or Excel 2019 and above).

The syntax is simple:

 =UNIQUE(A:A)

As long as your data is in column A, entering this formula will automatically generate a deduplication list.

If you are using the old version of Excel and do not have this function, you can consider using array formulas to implement them with INDEX, MATCH and COUNTIF, but it is a little more complicated and suitable for advanced users.

Basically these common methods are. You can choose the most suitable method according to your needs, such as whether dynamic updates are required, whether modifications to the original data are allowed, etc. Each method has applicable scenarios, which are not complicated but are easy to ignore details. If you use it correctly, you can improve your efficiency a lot.

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