# Doug's MATLAB Video Tutorials

## Building a GUI to read, modify and write an Excel file. 3/4

This is the third in a series of videos that will go through the process of planing and implementation of a simple GUI. Realistically, I would not plan out a GUI this simple, but the idea is to show what my planning process is on a simple example. The purpose of this GUI is to:
1. Select an Excel file and read it into the MATLAB workspace
2. Modify the data that came from the file. In this case by multiplying by a scalar
3. Write the modified data into an Excel file with a name derived from the original filename
The first video is all about the planning of the GUI.

The third video creates a single MATLAB file that runs the low-level functions

### One Response to “Building a GUI to read, modify and write an Excel file. 3/4”

1. B Thomson replied on :

I think you mean “prefix”, not “prefex.” Of course, you are free to name variables any name you want, even misspelt ones.

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Wrap code fragments inside <pre> tags, like this:

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a = magic(3);
sum(a)
</pre>


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Doug Hull is a proud MathWorker who is on a mission to help you with MATLAB.

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