Please also include your version of Excel and Operating system if you did not originally provide that information.
Wastes space (takes twice as much space, 75-100% more) and takes much longer to process a save.
I think if you have AOL, you will have to protect it by directory in your defragmenter.


C:\WINNT\PROFILES\userid\Temporary Internet Files From Internet Explorer, Tools, Internet Options, General (tab), Delete files.
Example using XL2000, my 2.16MB file was saved as a 3.85MB file and took 45 seconds to save first time with Save As, and over one minute with subsequent Save.
The save time for this large file as a normal XL2000 file is 10 seconds. If you are saving as Microsoft Excel 97-2000 & 5.0/95 Workbook *you will see the following Microsoft Excel 5.0/7.0 saving on your status bar where you normally see Ready toward the end of the save then you are saving in multiple formats.
And to think I massacred a bunch of newsgroups to gain a few MB of storage here and there, but if I really needed them I suppose I wouldn’t have deleted those newsgroups.
With a lot of stored file content and even though I had over 20GB free on my harddrive and 7GB for internet file, I could not view the source, or get into Front Page from IE except by deleting all temporary internet files "each" time I wanted to view the source. Defragmenter, with Win98 you get a defragmenter, with Win NT you will have to install one.