With Export Schedules you can customise file names, subject lines or the body within an email.  The following tags should help you achieve what you want.

ID's

[id]
This is the numerical export identifier (system allocated)

[uid]
This is the unique identifier of the schedule (if your schedule ran hourly, you would have a different identifier each hour.

Date Tag Explanations
Example: [d-m-Y H-i-s]

Day
Below are example tags and explanations included to represent 'Day'. 

d - Day of the month, 2 digits with leading zeros 01 to 31

D - A textual representation of a day, three letters Mon through Sun

j - Day of the month without leading zeros 1 to 31

l - (lowercase 'L') A full textual representation of the day of the week Sunday through Saturday

N - ISO-8601 numeric representation of the day of the week 1 (for Monday) through 7 (for Sunday)

S - English ordinal suffix for the day of the month, 2 characters st, nd, rd or th. Works well with j

w - Numeric representation of the day of the week 0 (for Sunday) through 6 (for Saturday)

z - The day of the year (starting from 0) 0 through 365

Week
Below are example tags and explanations included to represent 'week'

W - ISO-8601 week number of year, weeks starting on Monday Example: 42 (the 42nd week in the year)

Month
Below are example tags and explanations included to represent 'month'

F - A full textual representation of a month, such as January or March January through December

m - Numeric representation of a month, with leading zeros 01 through 12

M - A short textual representation of a month, three letters Jan through Dec

n - Numeric representation of a month, without leading zeros 1 through 12

t - Number of days in the given month 28 through 31

Year
Below are example tags and explanations included to represent 'year'

L - Whether it's a leap year 1 if it is a leap year, 0 otherwise.

o - ISO-8601 year number. This has the same value as Y, except that if the ISO week number (W) belongs to the previous or next year, that year is used instead. Examples: 1999 or 2003

Y - A full numeric representation of a year, 4 digits Examples: 1999 or 2003

y - A two digit representation of a year Examples: 99 or 03

Time
Below are example tags and explanations included to represent 'time'

a - Lowercase Ante meridiem and Post meridiem am or pm

A - Uppercase Ante meridiem and Post meridiem AM or PM

B - Swatch Internet time 000 through 999

g - 12-hour format of an hour without leading zeros 1 through 12

G - 24-hour format of an hour without leading zeros 0 through 23

h - 12-hour format of an hour with leading zeros 01 through 12

H - 24-hour format of an hour with leading zeros 00 through 23

i - Minutes with leading zeros 00 to 59

s - Seconds, with leading zeros 00 through 59

u - Microseconds Note that date() will always generate 000000 since it takes an integer parameter, whereas DateTime::format() does support microseconds if DateTime was created with microseconds. Example: 654321

Timezone
Tags to identify time zone

e - Timezone identifier Examples: UTC, GMT, Atlantic/Azores

I - (capital i) Whether or not the date is in daylight saving time 1 if Daylight Saving Time, 0 otherwise.

O - Difference to Greenwich time (GMT) in hours Example: +0200

P - Difference to Greenwich time (GMT) with colon between hours and minutes Example: +02:00

T - Timezone abbreviation Examples: EST, MDT ...

Z - Timezone offset in seconds. The offset for timezones west of UTC is always negative, and for those east of UTC is always positive. -43200 through 50400

Full Date/Time
Tags to represent full date and time

c - ISO 8601 date 2004-02-12T15:19:21+00:00

r » - RFC 2822 formatted date Example: Thu, 21 Dec 2000 16:01:07 +0200

U - Seconds since the Unix Epoch (January 1 1970 00:00:00 GMT) See also time()