Forum Discussion
Migrated files much larger in SharePoint Online than on disk
Håvard Meling did you ever find a solution to this issue? I am having exactly the same problem and can't find a solution. I have just migrated all our data across to SharePoint - just normal Office files in Word and Excel, PDF files and some images. Almost every file I uploaded has a much bigger file size online than it does on the local disk. I have a backup/synch application that I wanted to use to keep an offline backup but when I analyse changes between my locally synched SharePoint sites with the original files on a hard disk, they are all same dates/times/names - but totally different file sizes. Any pointers you can give to an explanation greatly appreciated.
chrisvanz
did you compare a file before and after uploading?
For Office files I would simply open the file with a zip tool to see the different components (e.g. xml files, images, ...). For binary files I would suggest to use the online tool https://hexed.it/
Some small changes are expected for msg and Office files but they should be in the order of 10 kB's.
Paul | SLIM Applications