4a. To import a .csv file, select the Microsoft Excel Comma Separated Values File and click Open. That's all.
4b. To import a .txt file, select the Text Document and click Open. Excel launches the Text Import Wizard.
5. Choose Delimited and click Next.
6. Clear all the check boxes under Delimiters except for the Tab check box and click Next.
To export text files, execute the following steps.
1. Open an Excel file.
2. On the File tab, click Save As.
4. Select Text (Tab delimited) or CSV (Comma delimited) from the drop-down list.
Result. A .csv file (comma separated) or a .txt file (tab separated).
