It seems unlikely that you can export any data from MS Access snapshots (.snp) and that also includes XLS Excel spreadsheets. Snapshots are provided so users without MS Access can view (not edit) a database. At best you could print it as PDF, but any data export doesn't seem likely.
Snapshots were used up until version 2010 of MS Access, where this function is no longer available.
This conversion entry was verified by us and conversion was flagged as wrong or not possible.
Usually this happens when the conversion would try to convert different types of data between each other, such as audio to image, or it is not possible because incompatibility between programs, caused by closed file formats, very limited support etc.
If you find entry that you feel is flagged as bad wrongly, please tell us in the discussion below with as much as information as possible so we can fix it.