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Opening a .OPJ file
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Travis
Oct 31, 2012, 6:38:08 PM10/31/12
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I was wondering if anyone would be willing to take a crack at opening a file for me. One of our instruments creates these files and we currently have to use the software that comes with the machine to export the data into a .dat file. This is tedious process that I would love to be able to do in MATLAB, but I do not have the slightest idea of where to start.
I don't know how I would get the file, ~45 mb, to you. Is it kosher to toss it up on the file exchange?
Ultimately I would like to be able to sort through the worksheets within the file and access the data in a few of them, the rest are junk. Any help would be greatly appreciated.
I don't know how I would get the file, ~45 mb, to you. Is it kosher to toss it up on the file exchange?
Ultimately I would like to be able to sort through the worksheets within the file and access the data in a few of them, the rest are junk. Any help would be greatly appreciated.
Steven_Lord
Nov 1, 2012, 10:08:15 AM11/1/12
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"Travis " <tvo...@usgs.gov> wrote in message
news:k6s98g$4g1$1...@newscl01ah.mathworks.com...
> I was wondering if anyone would be willing to take a crack at opening a
> file for me. One of our instruments creates these files and we currently
> have to use the software that comes with the machine to export the data
> into a .dat file. This is tedious process that I would love to be able to
> do in MATLAB, but I do not have the slightest idea of where to start.
> I don't know how I would get the file, ~45 mb, to you. Is it kosher to
> toss it up on the file exchange?
That's a rather large file from which to try to reverse engineer a file
> file for me. One of our instruments creates these files and we currently
> have to use the software that comes with the machine to export the data
> into a .dat file. This is tedious process that I would love to be able to
> do in MATLAB, but I do not have the slightest idea of where to start.
> I don't know how I would get the file, ~45 mb, to you. Is it kosher to
> toss it up on the file exchange?
format (I'm assuming it's not in any of the standard formats supported by a
function in MATLAB.)
http://www.mathworks.com/help/matlab/import_export/supported-file-formats.html
My second suggestion (after checking the table on that documentation page)
would be to ask the instrument manufacturer if they have a specification for
the format of the files or even better a standalone converter to convert
that file into one of the formats that MATLAB "knows" how to read. If they
have a standalone converter, use it; if they give you a file format, you can
use some of the low-level file I/O functions to write a reader function.
http://www.mathworks.com/help/matlab/low-level-file-i-o.html
If that's not possible, my third suggestion would be to post a SMALL file in
that format to some file hosting site like dropbox and post a link to the
file here.
> Ultimately I would like to be able to sort through the worksheets within
> the file and access the data in a few of them, the rest are junk. Any
> help would be greatly appreciated.
Steve Lord
sl...@mathworks.com
To contact Technical Support use the Contact Us link on
http://www.mathworks.com
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