I am trying to download my previously purchased Creative Suite 6. I get a message that the Archival parts are missing. Download all parts. What does this mean?

In case you did not see the detail from the link referenced within the link above:

Please note that if you are downloading a Windows product that includes two files, an .exe file and a .7z  file, you need to download both files to the folder. Double-click the .exe file (Windows) or the .dmg file (Mac OSand follow onscreen instructions to install the product.

If you dowhnloaded both files but don’t see them, navigate to the location where you saved your download and look for files ending in ".part". If you see any, then the download did not finish. ".Part" files are temporary files replaced by .7z, .exe, or .dmg when the download is complete.