Choose Office Button> Save As. The Save As dialog box opens.
Optionally, select a file location from the Save-in dropdown list.
Enter a filename. Click the Tools button. A drop-down menu appears.
Choose General Options. The General Options dialog box appears.
Click the Read-Only Recommended option. Click ok and then click save.
The Read-Only option is only a recommendation. Users can save changes to a read-only file by giving it a different name or
saving it in a different folder.
Open a File as Read-Only or Copy
Choose Office Button> Open. The Open File dialog box appears.
Locate and select the file you want to open.
Click the arrow on the Open button. A list of options appears.
Choose Open Read-Only or Open as Copy. The file opens.
To save any changes to the file, you must choose Home> Save As and specify a different file name.
If you open a file as a copy and do not use the Save As option, Excel uses the filename "Copy (#) filename" where #
represents the copy number and filenameis the current filename.
