Here goes, in theory this file is easily cracked, when you retieve what it says then please tell me
I bet you can't decode it, even though it is possible.

Code:
262:282
210:218
288:297
234:253
231:288
234:243
257:276
228:285
264:283
206:227
251:267
248:264
231:246
252:271
295:300
295:299
281:293
258:283
240:297
296:317
287:301
230:232
272:290
281:286
222:223
288:299
239:240
279:281
246:258
276:281
216:273
253:256
235:250
202:206
282:287
244:286
220:277
204:227
232:250
250:259
259:279
238:258
206:211
231:245
234:291
289:291
251:276
229:286
269:289
215:223
298:303
227:234
278:296
210:215
279:280
219:239
231:246
289:303
248:253
215:257
255:312
207:212
250:264
267:277
249:264
295:320
296:327
And yes, its crackable !