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06.06.2008 at 04:34AM PDT, ID: 23463312
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8.5

Excel File - Attach Binary Data

Asked by geoffdb in Microsoft Excel Spreadsheet Software, Miscellaneous Software

Tags: , ,

I wish to attach 'external' binary data to a conventional Excel file so that
a) the binary data is attached to, or stored within, the normal Excel file, but so that
b) Excel, without add-ins, runs the spreadsheet as normal
c) Excel, without add-ins, saves the binary data with the spreadsheet
d) Excel, with an appropriate add-in, can extract and/or process the binary data.

I can do (b) simply by appending a binary data file to any spreadsheet by using the DOS Copy command
with /B switch.   This runs fine in Excel, but loses the binary data upon save
I am confident I can do (d) by whatever means.   However, I am currently unable to do (c).

Some thoughts :
i) Use Excel's 'BigData' facility ?
ii) Append/insert the data similar to what can be done with an executable file ?
iii) Create some form of "block" within the file structure which Excel recognises - and leaves alone,
but gets saved AOK
I've tried (i) previously, but it seems to be little used and even less well documented.
I have the Microsoft Excel 97 Developers Kit book, and wonder if it was possible to use IMDATA or
similar.   However, my understanding of Excel's file system etc is insufficient for this kind of
task.    I note some programs are able to inspect an Excel file and to analyse for (and delete)
unused blocks (e.g. FastExcel).   On this basis, I believe there must be some means of achieving this
capability.

BTW : I am only trying to do this with Excel 2000 - 2003 (at present)Start Free Trial
[+][-]06.06.2008 at 11:21AM PDT, ID: 21731515

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[+][-]06.06.2008 at 05:21PM PDT, ID: 21733637

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[+][-]06.09.2008 at 03:34AM PDT, ID: 21742079

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[+][-]06.09.2008 at 05:55AM PDT, ID: 21742767

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About this solution

Zones: Microsoft Excel Spreadsheet Software, Miscellaneous Software
Tags: Microsoft, Excel, 2000 - 2003
Sign Up Now!
Solution Provided By: rorya
Participating Experts: 2
Solution Grade: B
 
 
[+][-]06.09.2008 at 11:26AM PDT, ID: 21745369

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[+][-]06.10.2008 at 04:09AM PDT, ID: 21750006

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[+][-]06.10.2008 at 04:13AM PDT, ID: 21750032

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[+][-]06.10.2008 at 06:30AM PDT, ID: 21751024

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[+][-]06.11.2008 at 03:46AM PDT, ID: 21758525

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[+][-]06.11.2008 at 12:27PM PDT, ID: 21763347

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[+][-]06.12.2008 at 01:51AM PDT, ID: 21767291

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