Note: The other languages of the website are Google-translated. Back to English

How to prevent lowercase entry in an Excel selection?

As we known, we can prevent other users from editing to protect cells in Excel, but have you ever tried to prevent users from entering lowercase characters into a selection? This case means that you allow users enter numbers, upper case letters, special characters but lower case characters. Here, in can introduce some tricks on solving this job in Excel.

Prevent lowercase entry with Data Validation

Prevent lowercase entry with Kutools for Excel good idea3

Only allow uppercase entry with Kutools for Excel good idea3

The Data Validation can help you to prevent lowercase entering in a selection.

1. Select a selection that you want to prevent entering lowercase characters, and click Data > Data Validation. See screenshot:
doc prevent lowercase 1

2. And in the Data Validation dialog, under Settings tab, select Custom from the Allow drop down list, and then enter this formula =ISERROR(FIND(UPPER(G1),G1))=FALSE (G1 is the first cell in the selection, please change it as you need) into the Formula box. See screenshot:
doc prevent lowercase 2

3. Then click Error Alert tab, and specify the error alert you want into the Error message box. See screenshot:
doc prevent lowercase 3

4. Click OK. Now when you enter lower case into the selection, there is an alert popped out.
doc prevent lowercase 4

Actually, if you have Kutools for Excel, you can apply its Prevent Typing to quickly specify the rules of entry.

After free installing Kutools for Excel, please do as below:

1. Select cells you want to prevent lowercase entry, and click Kutools > Prevent Typing > Prevent Typing, see screenshot:
doc prevent lowercase 5

2. And in the Prevent Typing dialog, check Prevent type in these chars option, and enter the all lowercase letters separated by commas into the below textbox, and remember to check Case sensitive option. See screenshot:
doc prevent lowercase 6

3. Click Ok, and a dialog pops out to remind you that the utility will remove the Data Validation.
doc prevent lowercase 7

4. Click Yes, and another dialog pops out to remind you the rule of typing.
doc prevent lowercase 8

5. Click OK. Now the selection cannot be inputted lowercase.
doc prevent lowercase 9

With Kutools for Excel, you also can only allow certain values entered by Prevent Typing. For instance, you can only allow uppercase entry in a selection.

Kutools for Excel, with more than 300 handy functions, makes your jobs more easier. 

After free installing Kutools for Excel, please do as below:

1. Select cells you only allow uppercase entry only, and click Kutools > Prevent Typing > Prevent Typing.

2. In the Prevent Typing dialog, check Only allow to type in these chars, and type the upper case letter separated by commas into the below textbox, and check Case sensitive. See screenshot:
doc prevent lowercase 10

3. Click Ok, and there will be two dialogs pops out to remind you something, just click Yes > OK to close them. See screenshot:
doc prevent lowercase 11

Now the when you type other characters which are not the uppercase letter, an alert dialog pops out.
doc prevent lowercase 12

The Best Office Productivity Tools

Kutools for Excel Solves Most of Your Problems, and Increases Your Productivity by 80%

  • Reuse: Quickly insert complex formulas, charts and anything that you have used before; Encrypt Cells with password; Create Mailing List and send emails...
  • Super Formula Bar (easily edit multiple lines of text and formula); Reading Layout (easily read and edit large numbers of cells); Paste to Filtered Range...
  • Merge Cells/Rows/Columns without losing Data; Split Cells Content; Combine Duplicate Rows/Columns... Prevent Duplicate Cells; Compare Ranges...
  • Select Duplicate or Unique Rows; Select Blank Rows (all cells are empty); Super Find and Fuzzy Find in Many Workbooks; Random Select...
  • Exact Copy Multiple Cells without changing formula reference; Auto Create References to Multiple Sheets; Insert Bullets, Check Boxes and more...
  • Extract Text, Add Text, Remove by Position, Remove Space; Create and Print Paging Subtotals; Convert Between Cells Content and Comments...
  • Super Filter (save and apply filter schemes to other sheets); Advanced Sort by month/week/day, frequency and more; Special Filter by bold, italic...
  • Combine Workbooks and WorkSheets; Merge Tables based on key columns; Split Data into Multiple Sheets; Batch Convert xls, xlsx and PDF...
  • More than 300 powerful features. Supports Office / Excel 2007-2021 and 365. Supports all languages. Easy deploying in your enterprise or organization. Full features 30-day free trial. 60-day money back guarantee.
kte tab 201905

Office Tab Brings Tabbed interface to Office, and Make Your Work Much Easier

  • Enable tabbed editing and reading in Word, Excel, PowerPoint, Publisher, Access, Visio and Project.
  • Open and create multiple documents in new tabs of the same window, rather than in new windows.
  • Increases your productivity by 50%, and reduces hundreds of mouse clicks for you every day!
officetab bottom
Comments (0)
No ratings yet. Be the first to rate!
There are no comments posted here yet
Leave your comments
Posting as Guest
Rate this post:
0   Characters
Suggested Locations

Follow Us

Copyright © 2009 - | All rights reserved. Powered by ExtendOffice. | Sitemap
Microsoft and the Office logo are trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.
Protected by Sectigo SSL