Column non standard data format

[Krzysztof_Zebro]

Hello

I'm for a while now trying to find out how to approche below problem. 

After importing data from external source and some transformations I recive data in specific format.

eg. 4242_A03389_5_S690QL_RevA_szt2  --> number_text_number_text_text_text

In some cases data is missing first number block --> A03389_5_S690QL_RevA_szt2

Is there a way to check if data in column have a specific format as in first example or to chceck if data begins with numbers not text?

[Krzysztof_Zebro]

Thank You. It have solve the problem.

[jgeddes · Accepted solution]

You can do this in Power Query with a custom column.

This will return 0 if the string starts with a number and -1 if it does not.