Excel VBA CONCATENATE String

There are two ways to “excel vba concatenate string”: the quick way you copy and the durable way you understand. This page gives you both. The exact Excel answer is above; below, we build the small mental model that makes the fix stick, so the next variation of the same problem solves itself.

Exact answer

In Excel: paste Sub Macro1() into the VBA editor (Alt + F11 → Insert ▸ Module), press F5 to run, and save as .xlsm to keep the macro. Excel for the web cannot create, run, or edit VBA macros. Open the workbook in the Excel desktop app to work with macros.

On this page8

VBA macro: Concatenate String

Scroll code horizontally to see more
Sub Macro1()
    ' concatenate string — replace the body with your steps
    Dim ws As Worksheet
    Set ws = ActiveSheet
    ' ... your code here ...
End Sub

How to run this macro

  1. Press Alt + F11 to open the VBA editor.
  2. Insert > Module.
  3. Paste the code above.
  4. Press F5, or close the editor and run it from Developer > Macros.
  5. Save the file as .xlsm so the macro is kept.
▤Annotated stepsExcel
1

Press Alt + F11 to open the VBA editor.

2

Insert ▸ Module.

3

Paste the code above.

4

Press F5 (or close the editor and run it from Developer ▸ Macros).

5

Save the file as .xlsm so the macro is kept.

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What this does

Sub Macro1() is a ready-to-run VBA macro that handles concatenate string without manual effort. VBA (Visual Basic for Applications) is Excel's built-in automation language: it can read every cell, loop through thousands of rows, and make decisions in milliseconds. To use it, open the VBA editor with Alt + F11, create a Module, paste the code, and press F5. The Concatenate String macro will run immediately — no add-ins, no external tools, just Excel doing exactly what the code tells it to do. Before the code does anything, check the environment it needs: desktop Excel, a macro-enabled workbook (.xlsm) and macros allowed for this file. If the workbook came by email or download, Office can block its macros until the file is trusted. Treat “excel vba concatenate string” 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 cells 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 text operation that turns messy entries into clean, usable data into a method you can reuse, explain, and defend when the workbook leaves your screen.

A worked example

Practical use: you run the same concatenate string task every month on a new export. Instead of repeating the steps manually, paste Sub Macro1() once into a Personal Macro Workbook (or into the workbook itself), and run it each month via Developer ▸ Macros ▸ Run. The Concatenate String macro applies the same logic to every fresh dataset — consistent, repeatable, and immune to copy-paste slips. Use Sub Macro1() every time you need to concatenate string reliably at scale. The macro eliminates the most common sources of error in manual work: missed rows, wrong column references, and inconsistent criteria. Once the code is tested and trusted, you can run it repeatedly with one click — zero cognitive overhead, zero variation in output. Step through the code once (Debug ▸ Step Into in the VBA editor) and watch the sheet after each line. It shows exactly what the macro changes before you let it run end to end.

In Google Sheets

Google Sheets does not run VBA. A macro written for Excel has to be rewritten in Google Apps Script (Extensions ▸ Apps Script), and an .xlsm file converted to Sheets keeps its cells but drops the code. 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. For “excel vba concatenate string”, the checks are about the environment as much as the code: desktop Excel with macros enabled for this file, a macro-enabled workbook and a saved copy to fall back on. Run it once on test data, compare the result with what the code says it does, and only then run it on the real sheet.

Common mistakes

  • Saving as .xlsx instead of .xlsm — Excel strips all VBA code when you save in the non-macro-enabled format. Always choose "Excel Macro-Enabled Workbook (.xlsm)" from the Save As dialog.
  • Running the macro on the wrong sheet — Sub Macro1() acts on ActiveSheet by default. If you have multiple sheets open, click the correct sheet tab first before pressing Run.
  • Macros are disabled — if you see a security warning bar, click Enable Content. If there is no bar at all, set File ▸ Options ▸ Trust Center ▸ Trust Center Settings ▸ Macro Settings to "Disable VBA macros with notification", which is the safe default that still lets you approve a file per workbook. Do not select "Enable all macros": it removes the only warning you get before a hostile workbook executes.

Frequently asked questions

How do I run the Concatenate String macro?

Press Alt + F11 to open the VBA editor, insert a Module (Insert ▸ Module), paste Sub Macro1() into the code pane, and press F5. Alternatively close the editor and run it from Developer ▸ Macros ▸ select "Macro1" ▸ Run.

Why won't my macro run — macros are disabled?

Excel blocks macros by default for files downloaded from the internet. Click the yellow security bar and choose "Enable Content" — that trusts this one workbook and is all that is normally needed. Leave File ▸ Options ▸ Trust Center ▸ Trust Center Settings ▸ Macro Settings on "Disable VBA macros with notification" rather than switching to "Enable all macros", which Microsoft itself marks not recommended. If the bar is red instead of yellow, the file carries Mark of the Web: close Excel, right-click the file, open Properties and tick Unblock. Also ensure the file is saved as .xlsm, not .xlsx.

Can I undo what the Concatenate String macro did?

No — VBA actions generally cannot be undone with Ctrl+Z because they bypass Excel's undo stack. Always test Sub Macro1() on a backup copy of the workbook before running it on live data, or add explicit validation logic inside the macro before the destructive step.

Other ways people ask this

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Why do people search for this in so many different ways?

Because the same task has many names. “concatenate string excel vba”, “excel vba string size”, “excel vba concatenate strings” all point at the one operation explained on this page, which is why they all lead here.