Complex sentence: During this period the company went through a period of rapid expansion opening almost 100 new retail stores during 1989, but was forced to file for protection under the Company Creditors Arrangement Act in January 1991.
Split into simpler sentences: During this period the company went through a period of rapid expansion opening almost 100 new retail stores during 1989. The corporation was forced to file for protection under the Company Creditors Arrangement Act in January 1991.