What do we do with docs in "STREAMING" folder?

Outstanding Contributor.

What do we do with docs in "STREAMING" folder?


Win 7, SQL 2012-R2, HP RM8.1.1.7760, MS Office 2010 

- I am finding 2 weeks of worth docs in the STREAMING folder at the main Production Primary WGS folder.

MS Word, Excels, PDF's and e-mails. ( 80 items) 

They appears to be a multiple copies of the same document but 90% of them are the same size???

EML can be opened but MSG displays "The operation failed" error in Outlook when i tried to open them 

Why these errors are there, is it safe to delete them?

(Data Integrity check for this month did not found any errors)