Zober mail, manualne uloz PPS subor ma plochy, spusti powerpoint a skus v nom otvorit ten subor. Ak to pojde, problem bude najskor v tom, ze mas zmrsene namapovanie pripony a programu, ktory by ju mal otvarat. Potom: .....Alternatively, you can also Right click the file whose association you want to change > Properties > General tab > Type Of File > Change > Choose a program from the list or recommended or other programs or else click Browse to select one.