For Each Activity
ForEach fileName in invoicesArray
should be
ForEach filePath in invoicesArray
Directory.GetFiles() method returns file paths, not file names
For Each Activity
ForEach fileName in invoicesArray
should be
ForEach filePath in invoicesArray
Directory.GetFiles() method returns file paths, not file names
@duke.ames
You can use Path.GetFileNameWithoutExtension(filepath) to get the file name from the file path.