After you save the file locally, you can view its contents by using one of the following methods:
Method 1 1) Double-click the .chm file. 2) In the Open File-Security Warning dialog box, clear the Always ask before opening this file check box. 3) Click Open.
Method 2 1) Right-click the CHM file, and then click Properties. 2) Click Unblock. 3) Double-click the .chm file to open the file.