In Excel: type the items in one column, select them and press Ctrl+T to make it an Excel Table — the list then grows by itself and can be referenced by name everywhere else.
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Put one item per row in a single column, with a header cell above them.
Select the range and press Ctrl+T, confirming that the range has headers.
Give it a meaningful name in Table Design ▸ Table Name — that name is what makes formulas readable.
For a drop-down, select the target cells ▸ Data ▸ Data Validation ▸ Allow: List ▸ Source: =TableName[ColumnName].
To keep the list sorted or de-duplicated automatically in Microsoft 365, feed the drop-down from =SORT(UNIQUE(tblDept[Department])) in a helper column.
For a bulleted list inside one cell, press Alt+Enter between items and turn on Home ▸ Wrap Text.
What this does
"List" means three different things and the right answer depends on which one you want. A plain list of items becomes useful the moment you press Ctrl+T: an Excel Table auto-expands when you type below it, gets filter buttons, and can be referenced as tblNames[Name] instead of a fixed range. A drop-down list that restricts what someone can type is Data ▸ Data Validation ▸ Allow: List, with the source pointing at that table column. And a numbered or bulleted list inside a single cell is a formatting job — Alt+Enter for the line breaks with Wrap Text on. Getting the first one right is what makes the other two maintainable. The same idea underpins a lot of everyday Excel work, so the few minutes spent getting it right here pay back across every sheet you build afterwards. Treat it as a pattern, not a one-off, and it stops being something you look up and starts being something you reach for. Treat “drop list in excel” as a small repeatable workflow rather than a one-off click you hope to remember next time. Use a small test block before the live file, so any surprise in the affected list shows up while it is still harmless. When this is a ribbon command, the selection matters more than the button: confirm the range, apply the command, then spot-check the output before saving. That turns a workflow that saves repeating the same clicks every week into a method you can reuse, explain, and defend when the workbook leaves your screen.
A worked example
Type six department names down A2:A7, select A1:A7 with a header in A1, press Ctrl+T and tick "My table has headers". Name it in Table Design ▸ Table Name: tblDept. Now a drop-down anywhere in the workbook is Data ▸ Data Validation ▸ Allow: List ▸ Source: =tblDept[Department]. Add a seventh department by typing it in A8 — the table grows and every drop-down picks it up with no further edit. Almost every spreadsheet starts as a list, and whether it was made a Table on day one decides whether the next six months are maintenance or rework. If this is something you do often, add the command to the Quick Access Toolbar (right-click it on the ribbon and choose Add to Quick Access Toolbar) or learn its shortcut, so next time it is one click instead of a hunt through the menus.
In Google Sheets
This is a command rather than a formula, so there is no syntax to carry over. Google Sheets arranges its commands in menus across the top instead of a ribbon, names some of them differently and does not have every Excel command — look for the equivalent in the Sheets menus or its help before assuming the steps match. Nothing on this page is behind a login or a download: the exact answer is at the top, and the detail below it is there for when you need it. That is the whole promise here — the answer first, and just enough context to make it stick. Treat “drop list in excel” as a routine rather than a one-off. Once you know which setting or command controls it, the same few steps handle every workbook where it comes up in Excel, and you can explain them to a colleague in a sentence.
Common mistakes
- Building everything on a fixed range like
A2:A20, so item 21 is invisible to every formula that depends on it. - Leaving blank rows inside the list, which stops the table expanding and puts empty entries in the drop-down.
- Keeping the source list on the same sheet as the form people fill in, where it gets edited by accident — put it on a separate sheet.
- Naming the table Table1 and then reading formulas six months later.
- Mixing trailing spaces into the items, so lookups against the list fail on the rows that look correct.
Frequently asked questions
How do I create a list in Excel?
Type the items in one column under a header, select the range and press Ctrl+T. That makes it an Excel Table, which expands automatically and can be referenced by name.
How do I turn a list into a drop-down?
Select the cells that should get the drop-down, then Data ▸ Data Validation ▸ Allow: List, and set Source to =TableName[ColumnName] so it grows with the table.
How do I make a bulleted list inside a single cell?
Press Alt+Enter between the items to add line breaks, and turn on Home ▸ Wrap Text so they all show.
Why does my drop-down not show new items?
The source is almost certainly a fixed range rather than a table column. Convert the source to a Table with Ctrl+T and point the validation at =TableName[ColumnName].