If you have a Chromebook that has the ability to run Android Apps, I highly recommend “Solid File Manager” as a substitute for the default file manager that is built into the Chrome OS. This app, when installed, will give you 14 days to play around with it then you will have to buy it. It was well worth the $1.99 that I paid (at a discounted price from $2.99). This “dual panel” Android file manager is the first one I have come across that can actually access the SD card (drive) on my Chromebook; plus, the network shares on my main computer. I also like that Solid File Manager allows me to encrypt files and the ability to easily access my online files from Google Drive, Box, OneDrive, etc… This Android file manager is the first file manager that I installed on my Chromebook that works seamlessly with the Chrome OS.
Below is the features of this file manager.
Features: – Material Design! – Two independent panels serving as file browsers – Rich customization options: icons sets, color schemes, themes – Drag and Drop inside and between panels – FTP, SFTP, WebDav, SMB/CIFS clients – Ability to read and extract ZIP, 7ZIP, RAR and TAR archives, even encrypted – Ability to create password protected ZIP and 7ZIP archives – Cloud file manager: Dropbox, Box, OneDrive, Google Drive, Sugarsync, Copy, Mediafire, Owncloud, Yandex – Root access makes Solid Explorer a fully functional root explorer – Extensibility: more features in separate plugins available in Google Play – Indexed search finds your files in a couple of seconds – Detailed file information with storage usage statistics – Batch rename: change names of multiple files at once using regular expressions and variables – Useful tools: hiding unwanted folders, FTP Server (plugin), bookmarks, Chromecast support, media browser
Source: Solid Explorer File Manager – Apps on Google Play