Respondus LE and Respondus 4 use the same file format, so files created in Respondus LE can be opened in Respondus 4. Files created in Respondus 4 can be opened in Respondus LE with exceptions. Only the standard question types can be edited Respondus LE. Unique question types available in some learning management systems will be quarantined, which cannot be edited or printed in Respondus LE.