How to select the last characters in a text box

[anb001]

I was using below expression to combine three text boxes, into a third text box.

=[txtPathProcedures]+[txtProcNumber]+Right([txtURLPath];4)

The txtPathProcedures is a textbox containing the path for some files.
The txtProcNumber is containing the file name.
And finally txtURLPath is containing the path of an URL. And I thought I only needed the last four characters, which was a "." and a file extension, e.g. ".doc".

However, some files comes with other sizes file extension. Can I some how modify the expression, or perhaps use vba, so it will take everything after the last "." in the URL, so it doesn't matter if the file extension is ".doc", ".docx" or ".accdb".

Thanks.

 

[pbaldy]

Try the Mid() function with InStrRev() to find the last ".".

 

[anb001]

Excellent. Just what I needed. Thanks!

 

[pbaldy]

Happy to help!