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Importing a table with unknown number of rows

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I have several xlsx files that contain the same columns, but different number of rows. An example xlsx file is attached. I would like to import them as tables, so I used Import Wizard to generate the attached function. The problem with the function is that it specifies the row length in opts.DataRange. However I would like to use this function on other xlxs files with the same columns, but different number of rows. How do I edit this function so it can accept any number of rows? Here's what I've tried,
dataLines = [2, Inf]; % Want to go from the 2th row to the last unknown row. Doesn't work.
opts.DataRange = "A" + dataLines(1, 1) + ":C" + dataLines(1, 2); % Columns A to C are imported from Excel file
but it crashes. I also tried
dataLines = [2, 500]; % I happen to know I always have less than 500 rows
but then my table actually has 500 rows, with the last several rows undesirably empty. I could manually delete them but I suspect there's a better way.

Accepted Answer

Stephan
Stephan on 16 Apr 2021
I dont think it is needed to specify this, using readtable function. I never used this option to import a .csv-file as table in Matlab.
  5 Comments
Stephan
Stephan on 17 Apr 2021
Its a one liner:
>> myTable = readtable('example_cooking_workbook.xlsx','PreserveVariableNames',true)
myTable =
39×3 table
Technique Serve Date Dish Number
_____________ ___________ ___________
{'salt' } 23-Jun-1980 57
{'saute' } 18-Jun-1992 93
{'scald' } 07-Jun-1994 79
{'scallop' } 18-Mar-1994 77
{'scoop' } 02-Aug-1996 57
{'score' } 17-Sep-1994 93
{'scramble' } 18-Mar-1994 81
{'sear' } 11-Apr-1997 68
{'season' } 17-Oct-1996 76
{'separate' } 10-Apr-1998 70
{'serve' } 12-Aug-1999 54
{'shell' } 23-Jul-1999 62
{'shirr' } 07-Feb-2000 56
{'shred' } 07-Feb-2001 59
{'shuck' } 03-Aug-2001 62
{'sieve' } 28-Nov-2000 71
{'sift' } 18-Dec-2000 52
{'simmer' } 03-Dec-1999 95
{'skewer' } 21-Sep-2001 97
{'skim' } 19-Dec-2003 75
{'skin' } 12-Aug-2004 74
{'slice' } 16-Nov-2004 67
{'sliver' } 29-Jan-2004 95
{'slow cook'} 14-Mar-2005 68
{'smoke' } 23-Mar-2005 56
{'snip' } 06-May-2004 89
{'soak' } 23-Mar-2005 69
{'soft boil'} 17-Nov-2004 62
{'souse' } 28-Jul-2008 70
{'sprinkle' } 28-Mar-2008 55
{'steam' } 19-Jun-2008 57
{'steep' } 29-Nov-2007 97
{'stew' } 30-Mar-2012 98
{'stir' } 04-Oct-2010 79
{'stir fry' } 30-Aug-2010 53
{'strain' } 15-Dec-2011 62
{'stuff' } 31-Aug-2011 68
{'sweat' } 27-Feb-2013 91
{'sweeten' } 24-Aug-2012 51
KAE
KAE on 18 Apr 2021
Thanks! I wonder why the Import Wizard function generation makes it so complicated? Well, serves me right for relying on it.

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