Are You Using a Spreadsheet?
You probably should stop it and look to alternatives like this Data Science at the Command Line
Even finance chiefs agree.
Task Tracking
Nothing is ever up to date, changes are delayed until the email, it's probably named Projec_X_Live_Copy-Dec-1-2016.xls
Sharing Data Across Teams
Oh great, you've just emailed all of your important info from a cyber cafe in Kazakhstan, now everyone has your data.
My Team Knows How to Make Charts in Excel
Yes but those changes only happen in their spreadsheet and are never merged into other spreadsheets. Additionally it took a long time to make that chart so when the updated version of the data is released your charts are already out of date.