[Intel Graphics Driver]
The issue may happen, screen flashes when using Microsoft Excel 2016.

Category FAQ
Model [TOUGHBOOK]
CF-20[A/B/C/D] (mk1)
CF-54[D/E/F] (mk2)
CF-D1[N/Q] (mk3)

[TOUGHPAD]
FZ-G1[P/Q/R] (mk4)
FZ-M1F (mk2)
FZ-Q2F (mk1)
Operating System Windows 10 Pro 64bit [ OS Ver. Anniversary Update (Ver.1607 Build.14393) ]
Language
Release Date 1/17/17
File Name
Index No 73995

Question

The issue may happen, screen flashes when using Microsoft Excel 2016.

Answer

Check the following Referential page, and update Video (Graphics) Driver.