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Re: Importing Several sheets from one Excel file into Mathematica

  • To: mathgroup at smc.vnet.net
  • Subject: [mg65058] Re: [mg65011] Importing Several sheets from one Excel file into Mathematica
  • From: "David Annetts" <davidannetts at aapt.net.au>
  • Date: Sun, 12 Mar 2006 23:59:30 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi Rosa,

> I have one excel file that contains three different 
> worksheets. When I import the data into Mathematica it only 
> imports the data from the first sheet, and it ignores the 
> rest of the sheets. Is there a way to tell Mathematica that 
> there is more than one sheet in this Excel file or do I have 
> to create separate files? The procedure I use to import the 
> data is the following:

For Mathematica 5.2 & Excel 2003 (XP), I can import data from an XLS file
which contains multiple sheets using Import["c:/Path/To/filename.xls"].
What version(s) are you using?
 
> Since I have several files of data to analyze, I create an 
> array with the file names and I import each file with a Loop 
> that assigns each file to a matrix (see below). I have no 
> problems importing the data to do the calculations, with the 
> exception for the above mentioned.  Any information that can 
> be provided will be greatly appreciated.
> 
> 
> Thank you in advance,
> Rosa.
> 
> (***assign files to array***)
> data1={"test1.xls","test2.xls","test3.xls"};
> 
> (***Loop to Import data files into separate matrices, and 
> arrange matrices for calculations***) Do[{
>     dat[k]=Import[data1[[k]]]; ...... ...
> },{k,1,Length[data1]}];

I don't see any real problems with the above code, especially given that it
works.

However, 

	data = Import[#]& /@ data1;

should be equivalent, and may be quicker as Length@data1 increases.

Note that you can also 

	SetDirectory["c:/My/Data/Directory"]
	data1 = FileNames["*.xls"]

Rather than hardcoding your filenames.  Needless to say, you can filter
filenames as you like.

Regards,

Dave.


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