They are actually ZIP files.  If you rename a .DOCX file to .ZIP you can
open it with WINZIP and see all of the files within.

On Thu, Jun 30, 2016 at 10:10 AM, Erwann SIMON <erwann.simon AT free DOT fr> 
wrote:

> Hello Pamela,
>
> You should propably add the Open XML Microsoft Office file extensions to
> you list (docx, xlsx, pptx...) as they are XML compressed files.
>
> --
> Best regards / Cordialement / مع تحياتي
> Erwann SIMON
>
> ----- Mail original -----
> De: "Pamela Pagnotta (CONTR)" <Pamela.Pagnotta AT HQ.DOE DOT GOV>
> À: ADSM-L AT VM.MARIST DOT EDU
> Envoyé: Jeudi 30 Juin 2016 15:05:56
> Objet: Re: [ADSM-L] "Compressed data grew" retries?
>
> Good morning Tom,
>
> We have, successfully, used the following in our dsm.opt/dsm.sys files for
> many years
>
> EXCLUDE.COMPRESSION "*.z"
> EXCLUDE.COMPRESSION "*.*_"
> EXCLUDE.COMPRESSION "*.pst"
> EXCLUDE.COMPRESSION "*.gif"
> EXCLUDE.COMPRESSION "*.doc"
> EXCLUDE.COMPRESSION "*.ppt"
> EXCLUDE.COMPRESSION "*.pps"
> EXCLUDE.COMPRESSION "*.psd"
> EXCLUDE.COMPRESSION "*.exe"
> EXCLUDE.COMPRESSION "*.jpg"
> EXCLUDE.COMPRESSION "*.jp2"
> EXCLUDE.COMPRESSION "*.sid"
> EXCLUDE.COMPRESSION "*.vsd"
> EXCLUDE.COMPRESSION "*.pdf"
> EXCLUDE.COMPRESSION "*.wpd"
> EXCLUDE.COMPRESSION "*.wav"
> EXCLUDE.COMPRESSION "*.xls"
> EXCLUDE.COMPRESSION "*.pfb"
> EXCLUDE.COMPRESSION "*.mov"
> EXCLUDE.COMPRESSION "*.xlk"
> EXCLUDE.COMPRESSION "*.wmv"
> EXCLUDE.COMPRESSION "*.cab"
> EXCLUDE.COMPRESSION "*.zip"
> EXCLUDE.COMPRESSION "*.jbf"
> EXCLUDE.COMPRESSION "*.rec"
> EXCLUDE.COMPRESSION "*.msg"
> EXCLUDE.COMPRESSION "*.pub"
> EXCLUDE.COMPRESSION "*.bmp"
> EXCLUDE.COMPRESSION "*.png"
> EXCLUDE.COMPRESSION "*.pot"
> EXCLUDE.COMPRESSION "*.mpg"
> EXCLUDE.COMPRESSION "*.mps"
> EXCLUDE.COMPRESSION "*.tif"
> EXCLUDE.COMPRESSION "*.tiff"
>
>
> Pam
>
> Pam Pagnotta
> Sr. System Engineer
> Criterion Systems, Inc./ActioNet
> Contractor to US. Department of Energy
> Office of the CIO/IM-622
> Office: 301-903-5508
> Mobile: 301-335-8177
>
> -----Original Message-----
> From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
> Of
> Tom Alverson
> Sent: Thursday, June 30, 2016 8:58 AM
> To: ADSM-L AT VM.MARIST DOT EDU
> Subject: [ADSM-L] "Compressed data grew" retries?
>
> I have been watching an initial TSM backup running for a long time now over
> a WAN connection (100mbit/sec) and I keep seeing "compressed data grew"
> followed  by a "Retry".  Does this mean that for every file that
> compression increased the size (even 1%) the whole transfer is discarded
> and it starts over again with the same file (presumably with compression
> disabled)?  If so that is probably hurting my backup speed much more than
> the compression ever improved it.  Is there any way to prevent this short
> of adding one of these options for every type of compressible file?
>
> EXCLUDE.COMPRESSION "*:\...\*.jpg"
> EXCLUDE.COMPRESSION "*:\...\*.zip"
>