Basically excel will just crash when trying to save / open documents or randomly stop responding and leave you with no option but to crash your spreadsheet.
Bandwidth - this one is a bit of a no brainer, make sure that you have a steady connection between you and your network files otherwise you will working very slowly constantly waiting for files or pages to load. usually it wont be a bandwidth issue if it is , copy the files to your local computer first.
Disable Network Printer
this solution is the most common, go to your devices and printers and set your default printer to a local printer on your machine such as a PDF writer or Microsoft XPS writer, this way your Microsoft document won't be taking forever trying to communicate with a network printer you regularly use when in the office.
For windows XP users you can try
- Click Start > My Computer.
- Click on Tools > Folder Options.
- Click on View tab
- Uncheck the first checkbox Automatically search for network folders and printers
having offline files enabled while on the internet / vpn will use a huge amount of bandwidth especially if you didn't finish synchronizing in the office, goto control panel - sync center and disable offline files
Turn off Network Discovery
Navigate to Control Panel - Network and Sharing Center - Click Advanced Settings on the left
here you will see a list of network profiles, expand them out to disable
- turn off network discovery
- turn off file and printer sharing
- turn off public folders
remember to select this under the type of profile selected for your internet connection , either home/work , public etc..
Disable Recent Files in Excel
this usually wont do much , but it wont hurt to speed up your excel a bit
goto TOOLS - > OPTIONS -> General and Uncheck “Recently use file list”