About two days ago, we moved a current project, to a Network Share (Server 2008) where we could Beta test it. The file was 4Mb. After copying it from the Network, back to a local Sandbox, a couple of minor changes were made and re-saved within the Folder. The file size went from 4Mb to 10Mb. Fortunately, there was separate back-up of only a couple of hours old, so it wasn't catastrophic.
Since then, we have moved the file back and forth, made changes, etc. with no bloating issues. The only difference, may be that I had a couple of Utility Add-Ins, that seemed to have been stripped out or disabled. But, that shouldn't cause any bloat like this to occur.
What would cause this sudden increase and/or where can one begin to look? Only a couple of lines of code were changed, within a 15 minute time period, so are there any specific locations or places to look into that could show such an increase, possibly storing something in a cache?