Some files may exceed the limit for upload to the virus scan websites. Therefore, you must break the file into smaller sections.
How to break the file into smaller sections
1. Delete any folder called playerdata (this will reduce the file size). If you don't have this folder, don't worry and move onto the next step.
2. Achieve the folder into either a ZIP or RAR to reduce the file size.
3. If the file size still exceeds the limit, split the folder into separate sections (about 2-4 sections) by zipping each individual folder inside the original Minecraft Map/World.
4. Upload each of these separate sections to a virus scan website (you will have to post multiple virus scan links from the same virus scan website).
5. Repeat these steps, as you need a virus scan from 2 different websites.