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AM_110272891-Visitor
1-Visitor
Apr 17, 2024 8:51 AM UTC
Question

File Type Not Supported - MathCAD Prime

Hi there,

 

I'm receiving the error "file type not supported" when trying to open an old mathcad file. 

I've attached the file, could you please assist. 

11 replies

Werner_E
Werner_E25-Diamond I
25-Diamond I
Apr 17, 2024 9:14 AM UTC

The file in the zip archive you posted is damaged/corrupted.

My attempt to fix it resulted in many missing regions. Maybe someone else has more success.

Attached "repaired" file is in format Prime 10.

 

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AM_110272891-VisitorAuthor
1-Visitor
Apr 17, 2024 9:18 AM UTC

Good day,

 

Thank you so much. 

I'm however using matchad 8 at the moment, would you be able to provide the repaired in version 8? 

 

Adam 

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LucMeekes23-Emerald V
23-Emerald V
Apr 17, 2024 9:54 AM UTC

Here is Werner's file converted to Prime 8.

Now you can choose which one is best.

 

Success!
Luc

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LucMeekes23-Emerald V
23-Emerald V
Apr 17, 2024 9:40 AM UTC

Your file is pretty corrupt. This is what I could recover.

Also here, many missing parts.

 

Success!
Luc

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AM_110272891-VisitorAuthor
1-Visitor
Apr 17, 2024 9:47 AM UTC

I don't understand how it would be corrupt. The file has been untouched since it was made. Seems like a quite a frequent issue with this software. 

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Werner_E
Werner_E25-Diamond I
25-Diamond I
Apr 17, 2024 10:06 AM UTC
@AM_11027289 wrote:

I don't understand how it would be corrupt. The file has been untouched since it was made. Seems like a quite a frequent issue with this software. 

Unfortunately Prime does not provide any means for creating and maintaining backups. It also lacks a simple autosave-facility as we were used from real old Mathcad.

In the past we have seen many requests similar to yours because of damaged Prime files and I got the impression that it could have something to do with (lots of) embedded pictures (not sure, though). Sometimes parts of the file (which actually is a renamed zip file) could be restored, but sometimes we had also seen file which consists of nothing but a lot of zero bytes where nothing was there which could be recover.

But I haven't seen any such requests here recently. This may mean that users have given up, or (hopefully) that Prime's behavior has been significantly improved in this respect in one of the latest versions.

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achirilaEmeritus
Emeritus
Apr 22, 2024 11:56 AM UTC
Hi @AM_11027289 
It looks like you have some responses from some community members. If any of these replies helped you solve your question please mark the appropriate reply as the Accepted Solution. 
Of course, if you have more to share on your issue, please let the Community know so other community members can continue to help you.
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