I'm writing an Excel (vba) utility for a project at work and I could use
some advice on my approach.

I have a folder with 100 .wav files. Each file has a corresponding
text-based script file with variables in it. Like this:

max_simultaneous_samples = 2;
min_playback_rate = 0.9;
max_playback_rate = 1.1;

I wrote a utility that allows users to add variable names as column
headings. When they click on a READ VALUES button my tool fills the first
column with the appropriate filenames, and then it searches through the
files and extracts the variables. The output looks like this:

FILENAME max_simultaneous_samples min_playback_rate
max_playback_rate
thunk.txt 2
0.9 1.1
clap.txt 2
0.8 1.2
gunshot.txt 2
0.7 1.2


I want users to be able to change those values, and then I want to write the
changed values back to the appropriate files. My current plan is that when
I fill worksheet 1 with the values above, I'll add the same values to the
same cells in worksheet 2. That way I can tell which values are the same
and which have been changed. (I'll probably change the font color of any
value that is different from the initial values. That way people will have
a visual indication of their changes before they click the WRITE VALUES
button.)

Is there a better/easier way to do this?

If my approach is okay, I guess I'll have to use the worksheet_changed event
and use 'Target' to search for the cells that have been changed. Right?

Thanks in advance.