(I suppose these days “cards” could refer to some kind of portable storage, though I bet it really means punch cards.)

Saved the slides out to a temporary directory, loaded them in Powerpoint, saved again as PPTX, edited the message (thank goodness Outlook allows this) to remove the embedded slides and attach the PPTX versions instead. Result: 663 Kb — a 93% saving in space, with no loss of fidelity.

Either we need to send everybody on compulsory email attachments training, or email systems need to get much more efficient at this stuff, and clean up the stupid stuff for them automatically.

By the way, Outlook 2010 made it very difficult, if not impossible to save the slides. Outlook 2007 looking at the same message managed it easily. Hmmm.

• Outlook: 485 Kb of HTML = 17 Kb plain text
• How to compress attachments in Outlook

Using MS Access to open up the database probably would have worked, but I didn’t have it on that machine.

Trying to import using the SQL Server Import And Export Data wizard from a CSV text file worked for a small amount of data, but the 80,000 rows I was trying to import from the world ports code list didn’t. Time and time again it would report an error (unspecified) and give me the option of Abort, Retry, Ignore. No matter option I chose, it crashed.

While the 64-bit version of the wizard on my 64-bit Win7 machine didn’t allow you to import from Excel/Access, the 32-bit version did (presumably because MS Office, at least the version I have installed, is 32-bit).

The next problem was that it only supported Excel 2003 format, which can’t handle more than 64K rows. I ended up having to split the data into two and import the two spreadsheets separately. Then it worked.

Shame the wizard is so flaky, and of course it’s a big shame that Management Studio doesn’t do copy/paste like one would expect. (Maybe that too was a 32-bit/64-bit issue.)

In the older PPT format, 6063 Kb.

When zipped, 4826 Kb. Not a bad saving given the number of pictures in it.

Here’s the interesting thing: in PPTX format: 3293 Kb.

Remembering that PPTX and other Office Open XML formats (DOCX, XLSX etc) do their compression on the file as a whole, not the individual componenets, so this is an interesting result.

Perhaps the old binary format is inherently less efficient/compressible than the new XML format.

Mind you, another big PPT I tried it with didn’t compress down as much; the PPTX was about the same size as the ZIPped PPT, so it obviously depends on the exact content

Copied the text including headers to a text editor. It was 6300 bytes. But Outlook claimed it was taking 485 Kb — some 76 times the amount of text.

How can this be?

The message was in HTML format. Ah… Microsoft-generated HTML, a receipe for bloat. It seems particularly bad when the message contains a whole email trail.

So, using Outlook’s very handy Edit Message function (I’m surprised it’s not abused more often), I changed it to Plain Text. It’s not as if anything in there relied on the HTML in order to be legible.

Switcheroo, save, presto! 17 Kb. Not 6, but not 485 either. Much better.

Shame there isn’t an option to clean up MS HTML.

Another thing one can do is zip the attachments.