File (with Macro) Keeps Growing In Size?

I have a workbook that grows in size on every use. I import a text file, manipulate the data, manually export it and delete the data from the workbook.
So why does it continue to grow in size? By manipulating I mean, add rows and text to the new rows. Attached is a copy of the workbook in native form (have not ran the macro) and a sample file to import, the excel file is 59kb in size and the test file is 9kb in size. I have seen my original file grow to over 500kb from repeating the same macro on the same file many times or running many different files for testing.

There is a CommandButton on Sheet1, it will open a userform. Click in the largest textbox and it will open a file dialog box in "C:". Place the supplied text file in "C:" or some other folder of your choice as you can navigate to any folder or drive from the dialog box. The macros that add lines and or text are "JumpToLabelName" (this runs first) and "InsertRows" which runs second. These two macros do all the work.

Take note:
I store information in the Registry, "GeoMeasure" under "VB and VBA Program Settings" (Normal windows key entry). You can search for "GeoMeasure" and delete it if you decide to test run the file.