I. Remove Any Blank Columns
1. Open your original spreadsheet
2. a. Active at last column, example: column "G"
2. b. Press "CTR + SHIFT + Arrow Right"
2. c. Then right click, choose "Delete".
II. Remove Any Blank Rows
3. a. Active at last rows, example: row "74"
3. b. Press "CTR + SHIFT + Arrow Down"
3. c. Then right click, choose "Delete".