I want to read calibration data from a file

I have some calibration data from an experiment. There are 14 channels and the data is arranged in a spreadsheet 14 rows x 4 columns, where each column is a different constant from a best-fit equation of the form y = b1 + b2.x1 + b3.x2 + b4.x1.x2, per channel.
I need to get the data into labview so that I can use it during an experiment. Can anyone recommend the best way to do this? I've tried the 'read from spreadsheet file.vi' but can't get it to work. Any recommendations or example code? Or do you think it is better to use a text file?
Thanks
Dave
Solved!
Go to Solution.

They do. From the Help file:
Reads a specified number of lines or rows from a numeric text file beginning at
a specified character ... can use this VI to read a spreadsheet file saved in text format.
Note: The underlining is my emphasis. Still, I understand what you're saying, and as I said, it's been poorly named from the beginning.

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I have a VI and an attched .txt data file. Now I want to read the data from the .txt file and display it as an array in the front panel. But the result is not right. Any help?

I have a VI and an attched .txt data file. Now I want to read the data from the .txt file and display it as an array in the front panel. But the result is not right. Any help?
Attachments:
try2.txt ‏2 KB
read_array.vi ‏21 KB

The problem is in the delimiters in your text file. By default, Read From Spreadsheet File.vi expects a tab delimited file. You can specify a delimiter (like a space), but Read From Spreadsheet File.vi has a problem with repeated delimiters: if you specify a single space as a delimiter and Read From Spreadsheet File.vi finds two spaces back-to-back, it stops reading that line. Your file (as I got it from your earlier post) is delimited by 4 spaces.
Here are some of your choices to fix your problem.
1. Change the source file to a tab delimited file. Your VI will then run as is.
2. Change the source file to be delimited by a single space (rather than 4), then wire a string constant containing one space to the delimiter input of Read From Spreadsheet File.vi.
3. Wire a string constant containing 4 spaces to the delimiter input of Read From Spreadsheet File.vi. Then your text file will run as is.
Depending on where your text file comes from (see more comments below), I'd vote for choice 1: a tab delimited text file. It's the most common text output of spreadsheet programs.
Comments for choices 1 and 2: Where does the text file come from? Is it automatically generated or manually generated? Will it be generated multiple times or just once? If it's manually generated or generated just once, you can use any text editor to change 4 spaces to a tab or to a single space. Note: if you want to change it to a tab delimited file, you can't enter a tab directly into a box in the search & replace dialog of many programs like notepad, but you can do a cut and paste. Before you start your search and replace (just in the text window of the editor), press tab. A tab character will be entered. Press Shift-LeftArrow (not Backspace) to highlight the tab character. Press Ctrl-X to cut the tab character. Start your search and replace (Ctrl-H in notepad in Windows 2000). Click into the Find What box. Enter four spaces. Click into the Replace With box. Press Ctrl-V to paste the tab character. And another thing: older versions of notepad don't have search and replace. Use any editor or word processor that does.

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Any body can send me the code (with java code ,Excel sheet) to this mail id : [email protected]
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[email protected],
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I want to read calibration data from a file

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