saving workbooks
To save a workbook, EITHER click on the File menu then Save, OR
Click on the Save icon on the standard toolbar 
When the Workbook is saved initially, the Save As dialogue box will be displayed. Enter a suitable filename in the File name box, change to a different folder if necessary then click on the Save button.
The easiest way to save subsequent changes to your Workbook is to click on the Save con as described above.
NB. The filename can be up to 255 characters in length, and cannot include any of the following characters:
Forward slash (/), Backslash (\), Greater than (>), Less then (<), Asterisk (*), Question Mark (?), Speech Marks (”), Colon (:), Semicolon (;).
Why bother trying to find it again later? Just bookmark it.
