I have the following:
For step 2, zapier is NOT finding the xlsx. The email always has a png in the body but the xlsx is the attachment. Zapier is recognizing both only. No way to identify ONLY the xlsx.
Hi
For us to have more info, post screenshots showing how your Zap steps are outlined and configured in EDIT mode with the field mappings visible.
Hey there, 
I just came across this and saw that you reached out to the Support team, who were able to help get it sorted! 
I’ll share the details of their solution here in case it helps anyone else running into a similar issue:
“To ensure the step properly filters:
1. Replace the 'Attachment' field value with the "Attachment Details Filename" as this will contain the 'xlsx' value you need the Filter to evaluate for.
(view larger)
Additionally, I noticed the Google Drive step is using a field from Gmail that doesn't contain the attachment file, which is why the file uploaded to Google Drive is empty. To resolve this:
1. Replace the 'Id' field value in Step 4 with the 'Attachment' field value. This will ensure that the attachment file from Gmail is uploaded correctly to Google Drive.
(view larger)”
If there’s anything else you need help with just let us know. In the meantime, happy Zapping! 
Enter your E-mail address. We'll send you an e-mail with instructions to reset your password.