Im currently using Dropbox to upload some folders from my pendrive. But apparently when i tried to upload those files, a message popped-up saying that "Unable to upload one or more files" "The following files are not supported by Dropbox and cannot be be uploaded: Thumbs.db, INV-YWM8(5)18 YUNG-18050007A,18050007B.XLSX, INV-YWM9(5)18-18050008.xls and 2 more." which some of these files were excel files.
After a couple of attempts, I just created a couple of folders and uploaded all of those files into their respective folders but so far I have not received any pop-ups saying "The following files are not supported by ...." and I am able to open those files in dropbox too.
Is this some sort of bug because these files are mostly just excel files? Did anyone else have this issue? Thank you for reading to this message.