The option to Download Instructor Files is a handy way for an instructor to wrap up all the materials (files/documents) you have put into a course in one quick batch for easy storage and re-use. This option will produce a folder with a set of all of the distinct files you have uploaded to your course - pdfs, word docs, powerpoints, video clips, images, etc. Note that it only includes files uploaded by an instructor, and does not include student uploaded content such as forum posts, wiki pages, assignment submissions, etc. Nor will it include material such as streaming video or external websites.
How to download instructor files:
Using the Print function from your web browser, your Moodle course page will print just as easily as any web page!
If you use your Moodle course page as essentially a syllabus, one easy option for saving a permanent record of your organization of topics and materials is to print a copy of the course page, or save a PDF copy. This will also preserve any text you had written directly in the course sections.
To do so, simply go to your Moodle course so that the page is displayed on screen and then "print" from your browser (Chrome, Firefox, etc). The left column, where there are some navigation links, will not print at all and any boxes/blocks that you have in the right column will print out at the end of the page.