The phrase "a folder containing" is correct and usable in written English.
You can use it when describing the contents of a folder, particularly in contexts related to organization, documentation, or digital files.
Example: "Please save all the project files in a folder containing the necessary documents for review."
Alternatives: "a directory that holds" or "a file that includes".
On her lap was a folder containing documents she had collected, among them one acknowledging that she was alive.
When you download a copy of your Facebook data, you will see a folder containing multiple subfolders and files.
The commands here will place a folder containing the starter code in a directory called proj1.
(You drag one icon atop another to create a folder containing them both).
He did, however, have a folder containing some of his favorite excuses that citizens trying to get out of jury duty have sent in over the years.
She handed me a folder containing the schedule of talks, an invitation to various dinners and receptions and two tickets to a Broadway musical.
A folder contains programme content, which uses attractive images and non-psychiatric language, and includes worksheets that are used during the programme and taken home by participants for later reference.
Collectively, these sets of documents, referred to as a folders, contain the information used for retrieval, and so retrieval and ranking are performed on folders rather than individual documents.
Ninety respondents who agreed to participate in a short survey were given a file folder containing a questionnaire on the right and a piece of gray paper on the left.
Then a financial advisor came to see me armed with a voluminous folder containing an investment strategy for my super fund.
Beside her was a manila folder, containing a Post-it Note with neat cursive script reading "Stacey McGowan, Grace Memorial Church, 10 30 a.m.," and directions from Huntington Bay, on Long Island, where Mrs. O'Neill lives, to Nyack, N.Y., where the church is.
