Import Voltammetry data from Gamry .xlsx and .DTA files.

• Purpose
  This app can be used to import Voltammetry data from Gamry Instruments. Both  .xlsx and .DTA file tyeps are supported. Multiple groups of data in the file starting with "*TABLE" will be merged in one sheet. A Scan# column will be added with the scan index to represent each table. 
• Installation
  Download the file "ImportGamry.opx", and then drag-and-drop onto the Origin workspace. An icon will appear in the Apps gallery window.
• Operation

1. Click the icon in the Apps Gallery window to open a dialog.
2. Click the browse button to select .xlsx or .DTA files. Note: Specify file type in the drop-down list of Open dialog. 
3. If .DTA files are selected, you can specify what numeric separator to use for ASCII import.
4. Check whether or not to add meta data(or main header) as supplementary sheet.
5. Specify output sheet and click OK button. 

v1.1: Support diversified table names. Add numeric separator option for ASCII import.