Has anyone else run into the following problem?

I was in the midst of writing a macro when my laptop blew a gasket and died.
Once I was able to restart, I re-opened both the original and the recovered
spreadsheet. In both cases, I received the normal "Enable macros" message
and the "update links" message, but then I received the following error:

The instruction at €œ0x3005c59b€� referenced memory at €œ0x00000018€�. The
memory could not be €œwritten€�.

Which is about as informative as a mime with laryngitis...

My questions a

1. Is anyone familiar with this error and what to do about it?

2. If this spreadsheet is corrupted (physically lost things), what recovery
source code is there available (if any)?

3. Is there any source code available to examine a spreadsheet and
determine IF it's "physically" damaged?

Thank you