RESOLUTION 1:

1. Double click the variable column in the spreadsheet to access the variable specification dialog.

2. Select "Number" as the Display format and set your desired number in the Decimal places.

3. Click "OK"
 

RESOLUTION 2:

On Statistica version 13.1 and higher, there is "Variable Format/Rename" node to edit variables' number of decimal places/digits in a workspace fashion.

1. After the input data is inserted into the workspace, search "Variable Format/Rename" in the Feature Finder box located on top right.

2.Insert the "Variable Format/Rename" node into the workspace .

3. Click "Edit Parameters" (the wheel icon on top left) of the "Variable Format/Rename" node to open the configuration dialog. 

4. Click "Edit Variable Specifications" to access the variable specification dialog.

5. Select "Number" as the Display format and set the number of Decimal places. (Note: you can click the double left/right arrows to move to the previous or next variable.)

6. After editing all desired variables, click "OK" and the run the node in the workspace to generate the reformatted spreadsheet.