How to open windows explorer from current working directory of WSL shell?

To open the current directory in Explorer - use the following (WSL sets the Windows path by itself):

explorer.exe .

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You can set alias with .bashrc for a custom command:

echo 'alias explorer="explorer.exe ."' >> ~/.bashrc
source ~/.bashrc

Now just use:

explorer 

to open the current working directory in Windows Explorer.

Microsoft provides a binary wslpath for exactly this purpose.

explorer.exe `wslpath -w "$PWD"`

Cribbing from the github issue asking for usage info, there are 4 options - -a, -u, -w and -m.

wslpath usage:
    -a    force result to absolute path format
    -u    translate from a Windows path to a WSL path (default)
    -w    translate from a WSL path to a Windows path
    -m    translate from a WSL path to a Windows path, with ‘/’ instead of ‘\\’

    EX: wslpath ‘c:\users’

For WSL2 you can access to home directory from windows like this :

\\wsl$

Sorry to be late at the party!