Back in the days of MC2001 there was only the .mcd format. I looked inside one of my files created using MC2001, and it looks nothing like that:
If I look inside a file saved from MC11 all the plain text stuff is gone, and it's pure binary.
I have seen a case in the past where someone saved the file as rtf, but somehow still had the .mcd extension, but it's clearly not rtf format either.
Hassan Muhieddine wrote:
I am sure these files was created with Mathcad, even though I am not sure in which version.
I guessed it was MC2001 based on the signature in one of the files I managed to open in notepad.
The worksheets I was able to open in Mathcad are of the same size, have the same file extension (.mcd) and are created in the same time period (most likely the same Mathcad version) as the offending worksheets which I think is strange.
In worst case, I have to recreate these files, a lot of files but maybe there might be any soultion or you have any suggestion of how to proceed from here?
Thank you!
/Hassan
Do you have a copy of Mathcad 2001, or Mathcad 11.2, and a PC sufficiently antiquated that it can be installed on?
Stuart
After witnessing a few problems with trying to get at old data, I normally recommend that projects archive a suitable computer and media as well the software itself ... it's amazing how much stuff companies lose because they can no longer read data or run the original software. It should be a conscious decision by the Project as to what needs archiving and how, and the Company should also have an archive management process that rationalizes such archives (eg, if several Projects can make use of a single computer type or OS, then keep m computers rather n computers (m to be decided by an appropriate reliability model) and ultimately decides (on a cost/benefit analysis) whether to quietly consign archives to Bin 13 or migrate them to a newer system.
Ah! There's nothing quite like the sound of the bolts on the stable door slamming shut after the horse is long gone! 
