First things first, to create a digital signature, you must have a signing certificate, which proves identity and verifies the authenticity of the document. So, when you send a digitally signed file ...

When most people think of Microsoft Excel, they think of organizational charts, budgets and quantitative formulas. However, there is much more to Excel than data manipulation. Adding multimedia images ...

There could be times when you might want to insert an image in an Excel spreadsheet. If so, you could follow this step-by-step guide to add or insert images in Microsoft Excel and Excel Online.