Attached the file vs Attached is the file

Some examples from the web:

• I attached the sound file for you to check out.
• Any discrepancies are to be justified in a note attached to the file.
• For each field expressed by a code, the meanings of the codes used will be attached to the file.
• He knew somebody'd open the file attached to that e-mail.
• If you select Add Comments in the Attached File the comments included with the images will be merged to a text file and attached in the mail.
• A copy of the Ship Recycling Facility Plan is attached to the application file.
• Evidence attached to the application file [17]
• A written record of all such contacts is attached to the proposal file.
• In addition, the draft SPA attached to the presentation file was only indicative and so potential bidders could have understood that the individual terms of the contract could be subject to bilateral negotiations.
• Permit, license or authorisation document(s) attached to the application file [9]:
• Internet skills for sending e-mails with attached files,
• If you enable this option, all image properties set by %1 as Comments, Rating, or Tags, will be added as an attached file.
• I must have accidentally attached both files.
• You're wrong, there was a patient file attached.
• Number of accountancy reporting files attached to the message
• Because of the letter you attached to his file.
• Okay, there are some encrypted files attached.
• Anyway, the Saxon files are attached.
• Well, I did find a video file attached to an incoming text.
• There's a huge file attached to it.

Some examples from the web:

• A copy of the Ship Recycling Facility Plan is attached to the application file.
• A written record of all such contacts is attached to the proposal file.
• He knew somebody'd open the file attached to that e-mail.
• Any discrepancies are to be justified in a note attached to the file.
• For each field expressed by a code, the meanings of the codes used will be attached to the file.
• Internet skills for sending e-mails with attached files,
• If you enable this option, all image properties set by %1 as Comments, Rating, or Tags, will be added as an attached file.
• I must have accidentally attached both files.
• If you select Add Comments in the Attached File the comments included with the images will be merged to a text file and attached in the mail.
• You're wrong, there was a patient file attached.
• Number of accountancy reporting files attached to the message
• Because of the letter you attached to his file.
• I attached the sound file for you to check out.
• Okay, there are some encrypted files attached.
• Anyway, the Saxon files are attached.
• Well, I did find a video file attached to an incoming text.
• There's a huge file attached to it.
• Please contact us here, then we will send the e-Book you want to read directly to you as an attached file format to the email. Don't forget to include your email address, your name and the title of e-Book you want to download.
• Evidence attached to the application file [17]
• Open a composer with < file > attached