Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Function or formula to identify the last repeated character in a cell in Excell

Posted on 2016-10-24
9
Medium Priority
?
85 Views
Last Modified: 2016-10-24
We have a list of files in an excel and want to separate their file extension.  We are using a combination of commands like search(), len(), left(), right().  However some files has various periods in their name (for example, file.of.mine.txt), thus making it difficult to set the 3 character of the extension.  So we thought if we can identify the last period we can calculate the exact 3 or 2 or 5 extension that a file may have (for example, filename.text or filename.manifext).

please advice.
0
Comment
Question by:rayluvs
  • 3
  • 2
  • 2
  • +1
9 Comments
 
LVL 46

Expert Comment

by:aikimark
ID: 41857134
You can use instrrev() to find the last instance of a char/string within a target string.
Example:
strFilename = "file.of.mine.txt"
strBasename = Left(strFilename, Instrrev(strFilename, ".") -1)
strExtension = Mid(strFilename, Instrrev(strFilename, ".") +1)

Open in new window


Note: You can also get this information with a FileSystemObject
0
 
LVL 49

Expert Comment

by:Martin Liss
ID: 41857181
strExtension = Split("file.of.mine.txt", ".")(UBound(Split("file.of.mine.txt", ".")))
0
 
LVL 53

Accepted Solution

by:
Rgonzo1971 earned 2000 total points
ID: 41857192
Hi,

pls try as a formula
=RIGHT(A1,LEN(A1)-SEARCH("@",SUBSTITUTE(A1,".","@",LEN(A1)-LEN(SUBSTITUTE(A1,".","")))))

Open in new window

Regards
0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 

Author Comment

by:rayluvs
ID: 41857240
The formula worked excellently separating the extension, but how do modify the formula to identify the last repeated period (".")?
0
 
LVL 49

Expert Comment

by:Martin Liss
ID: 41857241
I don't understand. What do you mean by "identify"?
0
 

Author Comment

by:rayluvs
ID: 41857256
example,

in file.of.mine.txt, the last "." is in the 13 position.  We want to identify the last ".".
0
 
LVL 46

Expert Comment

by:aikimark
ID: 41857263
@rayluvs

Have you tested the other comments?
0
 
LVL 53

Assisted Solution

by:Rgonzo1971
Rgonzo1971 earned 2000 total points
ID: 41857278
If you want the position of the last .
=SEARCH("@",SUBSTITUTE(A1,".","@",LEN(A1)-LEN(SUBSTITUTE(A1,".",""))))

Open in new window

0
 

Author Comment

by:rayluvs
ID: 41857289
The other comments don't work in the cell, we want work directly on Excel cell.

Thanx Rg worked!
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Do you use a spreadsheet like Microsoft's Excel?  Have you ever wanted to link out to a non excel file on your computer or network drive?  This is the way I found to do it!
Windows Explorer let you handle zip folders nearly as any other folder: Copy, move, change, and delete, etc. In VBA you can also handle normal files and folders, but zip folders takes a little more - and that you'll find here.
This Micro Tutorial will demonstrate on a Mac how to change the sort order for chart legend values and decrpyt the intimidating chart menu.
Excel styles will make formatting consistent and let you apply and change formatting faster. In this tutorial, you'll learn how to use Excel's built-in styles, how to modify styles, and how to create your own. You'll also learn how to use your custo…

971 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question