The phrase "a folder filled with" is correct and usable in written English.
You can use it when describing the contents of a folder, indicating that it contains various items or documents.
Example: "She opened a folder filled with important documents related to the project."
Alternatives: "a folder packed with" or "a folder containing".
There's a pack of playing cards on the living-room table, a beer on the arm of a comfy-looking leather chair, next to a folder filled with complicated-looking business plans.
Along with the tendon, I got a folder filled with recovery instructions for taking a shower and protecting the stitches and a piece of paper on how to write a thank-you note to the family of the donor.
When I unzipped it, it was a folder filled with HTML documents—one for each Buzz update.
It was just myself and the baby, so I, I mean, I got like a folder filled with all of our important papers in case I needed to go anywhere and everything was kind of flooded.
I thrust a folder filled with wetted papers out to him.
"I usually receive a folder filled with new space images, and my task is to clear them up," Widgen says in the video.
But when I did a test of a Document folder filled with 1,000 small files, the Seagate took 3 minutes and 6 seconds to copy it.
Instead, a teacher would come twice a week and bring a manila folder filled with worksheets, newspaper articles, crossword puzzles and word searches to my cell.
He opened a Manila folder filled with papers.
More than 30 years later, my rose file has become a digital folder, filled with positive feedback from clients and colleagues.
In fact, when I do trainings or speak about transgender children and youth I often bring up the fact that parents are encouraged to have a "safe folder" filled with documents attesting to their child's good health, gender expression and identity, and their good parenting in case someone reports them for abuse.
