Data from one file excel to outlook

Hi guys,

i'm not a good user of excel so i'm asking you to help me.

i have one file excel (called 7x24.xlsx), it contains a lot of name of the people that should travel and i have to send they an email with an advise.
everyday my colleague update it with new names (he put near the name an update date.. for example if today is 1/5/15 : one column (A1) with the name: Rossi Mario, one column (B1) with the start date of the travel :02/05/15 and another column (C1) that indicate the date of the insert into the file :01/05/2015).
When the file is updated, i'll check the new people inside the file and i send an email to all the travellers.

every week is like this for me:
on Monday I send an email to people who start the travel on Thursday of the same week (i copy all the travellers name from the excel file and i paste this name into Outlook)
on tuesday i send an email to people who start the travel on Friday of the same week
on wednesday i send an email to people who star the travel on saturday and sunday of the same week
on Thursday i send an email to people who start the travel on Monday e Tuesday of the nex week
on Friday i send an email to peolpe who start the traver on Wednesday of the next week.

Using this method i find an error.. (for example) if is tuesday and my collegue has just update the file with new Thursday travellers, i don't sent the email to them but only for friday travellers and doing like this all the new name for thursday are lost.
since I realized the error, I have to check every time all the latest send emails and check if other people have been included.

can you help with a new method? or a specific option of Outlook/Excel that helps me?

Thank to all for the support.
Andrea.

like that___________

can you explain that please?

thanks

explain? how? You've not even attached an excel file.
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