Not enough disk space

Hello, Guys, I have Acer Chromebook 14 with following Specifications:

Intel Celeron N3160 Quad-Core Processor 1.6GHz
100% Aluminum Chassis
4GB LPDDR3 Onboard SDRAM Memory, 32GB Internal Storage
14 inch Full HD IPS Display (1920 x 1080)
Up to 12-hours Battery Life

I purchased it for office work overall performance is good but it has only 32gb storage which is very less for my work so is there any option to install SSD in it or what is possibility? I don't want to preferred use external SSD.

The answer is yes you can install a larger SSD in your chromebook, it's as simple as opening it up, and switching them out. You just have to make sure to clone the OS from your old SSD to the new one. I should also note that this is going to void your warranty if you have one.

Most models of this serie have their RAM and SSD soldered on the motherboard and both can't be extended.

For more precise information, check for the actual model number of you laptop (there's a sticker on the bottom case), and google it.