picking monthly file from directory tool

[kauser]

Hello, 

 i am using Directory tool to list all my input files then will use dynamic input tool to select my specific file for specific task. on my directory tool there are around 10-15 .xlsx files and out of these many files how can i pick this one file Jan.xlsx from following list because this file name with month will change in every month and all other file will replace with same name. i mean on next month Jan 31 file will replace with Feb 27 file so is there any way so i can pick the file by first three letter from month. 

File Name

Red.xlsx

Green.xlsx

Blue.xlsx

Jan 31.xlsx

Black.xlsx

white.xlsx

Purple.xlsx

Orange.xlsx

Aug 30.xlsx

Light Green.xlsx

Yellow.xlsx

Thank you 

Kauser 

[alexnajm · Accepted solution]

Will it always be 3 letter followed by 2 digits? If so, this should work to Filter the list:

Regex_Match([File Name], '^\w+\s\d{2}\.xlsx')