[GNC] Trouble opening ancient files

[Thomas Klausner]

Hi!

I have been using gnucash for a very long time, and recently I tried
opening some of my first files -- but couldn't. Many old files worked,
but not these two and their related .xac files.

I see two different symptoms.

One file has an timestamp from 2002. I don't recognize the file
format, it's a binary format, but gzip cannot unpack it
The error I get from gnucash (3.10) is:

"No suitable backend was found for /path/to/file."

A hexdump of the file starts with:

00000000  00 00 00 0a 00 00 00 04  00 00 00 ab 00 08 00 00  |................|
00000010  00 09 41 75 73 67 61 62  65 6e 00 00 00 00 04 31  |..Ausgaben.....1|
00000020  30 30 00 00 00 00 01 00  00 00 00 01 00 00 00 00  |00..............|
00000030  04 46 52 46 00 00 00 00  01 00 00 00 00 00 00 00  |.FRF............|
00000040  00 01 00 00 00 05 00 00  00 d6 00 08 00 00 00 06  |................|
00000050  45 73 73 65 6e 00 00 00  00 04 31 31 30 00 00 00  |Essen.....110...|

where I'm quite sure that "Ausgaben" is an account name and FRF is a
unit of currency, so probably Account number 100 in the Unit of FRF.


The second file has a timestamp from 2005. It is plaintext XML. The
error from gnucash is:

"This file/URL appears to be from a newer version of GnuCash. You must
upgrade your version of GnuCash to work with this data."

The file starts with:

--- begin quote ---
<?xml version="1.0"?>
<gnc-v2>
<gnc:count-data cd:type="book">1</gnc:count-data>
<gnc:book version="2.0.0">
<book:id type="guid">61535f2d2589fccc34164e57b1255f25</book:id>
<gnc:count-data cd:type="commodity">1</gnc:count-data>
<gnc:count-data cd:type="account">38</gnc:count-data>
<gnc:count-data cd:type="transaction">1023</gnc:count-data>
<gnc:commodity version="2.0.0">
  <cmdty:space>NASDAQ</cmdty:space>
  <cmdty:id>Fond</cmdty:id>
  <cmdty:name>Fond</cmdty:name>
  <cmdty:fraction>100000</cmdty:fraction>
</gnc:commodity>
--- end quote ---

Then follows a gnc:pricedb and some accounts like

--- begin quote ---
<gnc:account version="2.0.0">
  <act:name>Ausgaben</act:name>
  <act:id type="guid">be0508dcdbc39e35f677dd6f334d36e5</act:id>
  <act:type>EXPENSE</act:type>
  <act:commodity>
    <cmdty:space>ISO4217</cmdty:space>
    <cmdty:id>ATS</cmdty:id>
  </act:commodity>
  <act:commodity-scu>100</act:commodity-scu>
  <act:code>100</act:code>
  <act:description>Ausgaben</act:description>
</gnc:account>
--- end quote ---

Any suggestions on how to get versions of these files that could be
opened by gnucash 3.10?

Thank you,
 Thomas