Make Mac OS X TextEdit open blank document by default

Issue

Opening TextEdit opens a Finder File Picker dialog instead of a blank text document.

Export Office 365 Online Archive to Apple Mbox format

I used below procedure to export emails from Office 365 Exchange Online Archive and import them into Mac OS X Apple Mail while doing PST to MBOX format conversion.

Installing Mac OS - An error occurred while preparing the installation...

Issue

Installing Mac OS X on iMac's blank formatted hard drive. Installation runs for 5-10 minutes and then fails with following error:

An error occurred while preparing the installation. Try running this application again.

Tried installing OS X El Capitan (10.11) and OS X Sierra (10.12) - the same error occurs in both cases.

Mac OS L2TP/IPsec VPN connects but no access to remote network

Issue

L2TP/IPsec VPN successfully connects to a remote VPN server, but Mac OS still has no access to the remote network.

Resolution

To resolve the issue I had to select "Send all traffic over VPN connection" in VPN network Advanced settings.