Corrupted file recovery

#1 Posted: 11/18/2014 5:34:54 AM

0 likes in 7 posts.

Group: User

Hello,

I saved my smath file yesterday after having added a lot of locked regions.
Today I have troubles opening my file : it opens but only displays a very small part of the content...
I have also noticed that it is strangely big (about 70000 Ko).
Someone please help me to recover my file?

Cécile

#2 Posted: 11/18/2014 6:12:44 AM

Martin Kraska

1222 likes in 2150 posts.

Group: Moderator

That is a quite challenging task without having the file...

Martin Kraska Pre-configured portable distribution of SMath Studio: https://en.smath.info/wiki/SMath%20with%20Plugins.ashx

#3 Posted: 11/18/2014 7:07:42 AM

cecile

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Group: User

I know, but it's far too big to be uploaded here...
First I can try to send you a version of what is left of my document.
If you cannot do anything with it, maybe I can try to upload it on a drop box?

Thanks for answering anyway...
Cécile

save of what remains.sm (3 KiB) downloaded 53 time(s).

#4 Posted: 11/18/2014 7:48:22 AM

Davide Carpi

1416 likes in 2873 posts.

Group: Moderator

Hello Cécile,

try to zip it, otherwise you can make a folder with your name in the forum_attach folder of the wiki (max 20Mb) or you can use a dropbox link

If you like my plugins please consider to support the program buying a license; for personal contributions to me: paypal.me/dcprojects

#5 Posted: 11/18/2014 8:36:29 AM

cecile

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Group: User

Ok, I have uploaded it here : https://www.dropbox.com/sh/8ctdw3rm2bwxvvv/AABVWjttZHgmy4Z5cSLrhLMia?dl=0
Hope something can be done.
Thanks for your time anyway.

Cécile

#6 Posted: 11/18/2014 11:13:12 AM

Davide Carpi

1416 likes in 2873 posts.

Group: Moderator

Hi Cécile,

All the data is encrypted inside an area region, so I guess that the only way to attempt to solve your issue is to contact the developer (smath)

Best regards,

Davide

If you like my plugins please consider to support the program buying a license; for personal contributions to me: paypal.me/dcprojects

#7 Posted: 11/18/2014 12:58:08 PM

cecile

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Thanks a lot Davide.
I have managed to find an old file, so I think I will restart from here...
Cécile

#8 Posted: 11/19/2014 10:54:23 AM

brotjob

7 likes in 71 posts.

Group: User

I can open the file and I see one collapsed area. When I try to open the area I am prompted for a password which I don't have.

When I try to open the file again with the Area plugin disabled (trying to recover what is not in an area) I get an error "System out of memory".

I don't get this error when I open the file directly with the disabled plugin.

Anyway, those cases where you loose your data because it is overwritten by a corrupted version are a major reason not to use Smath Studio in a productive environment. Sadly I never had a reproducible case to report but it happened to me several times.

#9 Posted: 11/19/2014 5:13:19 PM

Andrey Ivashov

2269 likes in 3732 posts.

Group: Super Administrator

Wrote
Sadly I never had a reproducible case to report but it happened to me several times.

Did you experience situations when file was so large even if it contain just couple of regions?
The issue described in this topic looks unique for me. I don't see that any data lost, but I see no reason for such a big file size... Working to figure it out.

1 users liked this post

Davide Carpi 11/20/2014 6:59:00 AM

#10 Posted: 11/22/2014 3:42:13 PM

cecile

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Group: User

OK, Maybe it's not worth to spend time on it if I was the only person reporting this trouble.
Anyway, you are now aware it happened once...
thanks to every one who tried.

Cécile

#11 Posted: 11/25/2014 8:07:51 PM

Andrey Ivashov

2269 likes in 3732 posts.

Group: Super Administrator

Cécile, thank you very much for the report!

#12 Posted: 8/5/2015 11:58:11 PM

Jean Giraud

983 likes in 6866 posts.

Group: User

Corrupted work sheet is not peculiar to Smath. In the process of doing something,
the system does not queue correctly and the work sheet may be partially corrupted,
even worse: TOTALLY corrupted , nothing to do, reconstruct from blank sheet.
In Win XP, a corrupted sheet may appear as an yellow icon 'scrap'. If you open
Word first and slide 'scarp' in Word, it will show what's left as far as Word can
interpret Smath. It did work in Mathcad 11 ,,, as far as work means.

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