Question type - File upload
From LimeSurvey Manual
General description
File upload Question Type can be used to collect file(s) from a user in response to a question. For example, a company with employment opportunities could use this question to request the candidate to submit/upload his resume as well as photograph and other scanned documents in the employment survey. This question gives the survey designer the ability to restrict the files that can be uploaded by the user in response to the question. For example, the survey administrator can allow only PNG, JPG and JPEG images which are less than 1 MB in size.
Advanced settings
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