If you are using custom formulas for analysis on the main google sheet that is exported using the google sheets export tool, your formulas will not be saved when an automatic update is done. 

You should create a separate spreadsheet where you analyze the data from the Google Sheet Export file from Wealthica. To do so, on your own spreadsheet, use the function  "IMPORTRANGE" (https://support.google.com/docs/answer/3093340?hl=en).

With IMPORTRANGE you can import the sheet from the sheet URL into your own spreadsheet. Then you can do all your manipulations from your own spreadsheet.